The study aims to determine the influence of the MURDER Learning (Mood, Understand, Recall, Detect, Elaborate Review) to thema the mathematical reflective thinking ability is reviewed from self-efficacy. This type of research used is the Quasi-experimental Design with the research design used Posttest-Only Control. Taking the sample using the cluster random sampling technique, The sample in this study used a two-class, experimental class containing 32 students and class as a control class containing 32 learners. Data collection techniques Using test instruments (posttest). Test data analysis using Two Way Analysis of Variance. The results of the study were obtained that there was an influence among learners who acquired the MURDER learning model with learners who gained conventional learning of Mathematical reflective thinking skills, there is an influence between learners with high efficacy height, moderate, and low to mathematical reflective thinking skills, and there is no interaction between the MURDER and self-efficacy models of mathematical reflective thinking skills.

Penelitian ini bertujuan untuk mengetahui proses kegiatan pertambangan emas dan dampak kegiatan pertambangan emas terhadap kondisi lingkungan fisik di Desa Paningkaban Kecamatan Gumelar di Kabupaten Banyumas. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan teknik pengumpulan data berupa observasi terhadap kondisi pertambangan serta dampaknya yang didukung dengan hasil wawancara dan dokumentasi yang dilakukan dilapangan. Hasil penelitian menunjukan bahwa proses pertambangan masih menggunakan cara tradisional dengan cara melakukan pembuatan lubang/sumur menggunakan alat sederhana, pengambilan bahan galian tanpa mesin, pemisahan dan penghalusan serta penggilingan secara manual, penyaringan tanpa pengamanan ketat yang langsung terkontaminasi dengan manusia, hingga proses ekstrasi dengan cara pembakaran. Kondisi tersebut menimbulkan dampak perubahan yang terjadi disekitar lokasi pertambangan emas, diantaranya adalah penggunaan lahan dari perkebunan menjadi unit pengolahan emas yang berpengaruh terhadap kondisi tanah dan vegetasi, menyebabkan terjadinya amblesan disekitar unit pengolahan emas, pencemaran tanah dilingkungan permukiman, serta pencemaran air sungai dan sumur warga akibat pembuangan limbah merkuri karena tempat penampungan sudah tidak mampu untuk menampung limbah yang dihasilkan.

This article describes the confusion of the West phenomenon which is often declared by the glorious civilization according to modern society. But, Islam as a great religion is known to be a backward civilization and left behind from the West. A Turkish scholar named Muhammad Fethullah Gulen observed this phenomenon and tries to declare that the Islamic civilization is not backward. This type of research is library research, listing all literature and data related to Gulen's perspective in the concept of Islamic civilization development. Researchers used descriptive-analysis methods to describe and analyze the concept of Islamic civilization according to Gulen and how to build it. The Researcher concludes that the pillars of Islamic civilization according to Muhammad Fethullah Gulen include four pillars, moral-spiritual, aesthetics, and love for the Creator.