The results of analysis of Indonesian potato EPD on the Singapore market are in a retreat position and Malaysia is in a lost opportunity position. The results of OLS analysis in both countries show that the variable that has a significant effect on the level of potato exports is the GDP of the destination country and the real exchange rate. While the price of exports only affects Singapore.

This research aims to identify social capital in the sale of sheep livestock in the Bina Mandiri Sheep Farmers Group in Sidomulyo Village, Silo District, Jember Regency. The components of social capital used are trust, networks and values and norms. This research is a qualitative descriptive study that uses the method of in-depth interviews with key informants and additional informants. Testing the validity of the data in this study using triangulation techniques. Network and Trust are the main elements in the group that can increase the sale of sheep. Elements of values and norms in the group complement the network elements and trust that the sale of sheep can be increased. So, it can be concluded that the results of this study indicate the condition of social capital in the Bina Mandiri Sheep Farmer Group has a role in the sale of sheep.

Solid Oxide Fuel Cells (SOFCs) offer their ability to directly convert hydrocarbon fuel into electricity via internal dry reforming. NiYSZ-based SOFC anodes were manufactured via aqueous tape casting. Raw materials such as NiO and yttria-stabilized ZrO2 powders, glycerol, polyvinyl alcohol (PVA), and water were weighed and mixed. The obtained slurry was ball milled for 12 hours, de-gassed, tape-cast, and dried at ambient temperature to obtain smooth, crack-free, elastic, and easy to remove green tapes. The good green tapes were then sintered at 1200˚C. The sintered tapes were characterized for their morphology, topography, and composition by using SEM/EDX. The hardness uses Vickers hardness tests while the electrical conductivity at 600-800 o C uses a special furnace and a multimeter. On the other hand, the porosity is being tested by the Archimedes method. The results showed that good SOFC anode tapes were obtained after degassing in the range of 32 -125 hours depending on the amount of PVA and water added to the mixture. The resulting morphology and topography of the anode tapes were comparable with those of the reference anode tape, with pore sizes ranging from 100ɳm-1μm and 28% porosity (pore volume). The tapes' hardness after sintering was in the range of 170.3 HV and 212.2 HV. Under the condition, their conductivities were 0.098 Siemens and 0.529 Siemens at 750 o C and 800 o C respectively. The successful attempts to make NiYSZ-based SOFC anodes using locally available materials and equipment are promising as the initial steps for further development of SOFC manufacturing in Indonesia. The developed SOFC will be further tested as a Solid Oxide Electrolyser Cell (SOEC) to produce hydrogen.