The Regency that rich in the natural resources needs many stake holders to attract the investors to open new enterprises or collaborate the Micro, Small and Medium Enterprises (SMEs). A map out procedure was carried ou to seek the natural resources as backbone of community development and business growth in Simalungun Regency of North Sumatra Province of Indonesia. Data collection was made by seeking the data of official documents and studies reports. Data obtained revealed that Simalungun Regency in 2019 and 2020 has a great economic growth in agriculture. It found that the sector of forestry, agriculture and fisheries in 2019 increases 6.15 % and in 2020 it grew 9 % . Beside it has registered 1,200 SMEs, it will make the increase of SMEs whenever the Agropolitan Development Plan set up within 5 years. Simalungun Regency has very huge natural resources that needed to be developed as an agropolitan area to support the Micro, Small and Medium Enterprises (SMEs).

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The Student Executive Board (BEM) of the University of Timor is a student organization located at the State University of Timor. In its implementation, BEM at the University of Timor acts as a forum or means for all students of the University of Timor to be able to express their opinions and to develop various potentials that students have. The election of the chairman of the BEM of the University of Timor is directly elected by the students by a general election process. The process of selecting the chairman of the BEM is still done manually so that there is a lack of interest from voters to participate because they have to go to the polling station. Therefore, the development of information technology today has brought great changes for humans, including to carry out voting so that the term e-voting (electronic voting) appears which provides convenience in voting. E-Voting is a general election process that utilizes information technology facilities or electronic devices, where part or all of the implementation process, from voter registration, voting, to vote counting, is carried out digitally. The function of voting is to gather the aspirations of all students, and then find a way out that is considered a good cross. Therefore, the researchers helped the election system easily and created an application for the election with the title "E-voting for the election of the chairman of the Mobile-based Student Executive Board (BEM) of the University of Timor using the waterfal method".

Gold is one of the people's preferred forms of investment and is considered the safest (save -heaven). Gold risk which is considered small is the main attraction because in general Indonesian people are not yet familiar with capital market investments such as stocks and mutual funds. But the price of gold is very volatile as for the factors that affect the fluctuations of gold are consumption demand, volatility and market uncertainty, protection of low-interest rates, and the US dollar. Predicting the movement of the gold price and knowing where the direction of the exchange rate moves and determining the price of gold up or down cannot be done accurately and consistently. For this reason, in reducing the risk of loss, an application is needed to predict gold prices using the Fuzzy Time Series Chen algorithm using MATLAB software. In this study to obtain prediction results and comparison charts using actual data and prediction data for the 2015-2017 gold price. From the calculation results obtained by the prediction results with the Fuzzy Time Series method with the Chen algorithm where the average difference between the actual data and prediction data is not more than Rp. 2,850, - where predictions using the Fuzzy Time Series method Chen's algorithm is sufficient to use 1 data to predict the second data which makes this method accurate in predicting the price of gold.

Social media is a means to convey aspirations directly, but every aspiration is from social media users. Everyone who expresses opinions on social media contains positive, negative, and neutral sentiments. The implementation of the Ministry of Education and Culture's policy on the implementation of distance learning policies during the pandemic COVID-19 received various responses from the people of Indonesia. neutral as many as 894 comments, then 52 comments with negative sentiment, and 32 comments with positive sentiment with an accuracy value of 98.79%