Yerimadesi, Yerimadesi. “Efforts to Improve Competency of Teacher MGMP Chemistry, Padang City Through Training For Development of Teaching Materials Based on Guided Discovery Learning”. Pelita Eksakta 2, no. 2 (November 30, 2019): 121-129. Accessed May 3, 2024. http://pelitaeksakta.ppj.unp.ac.id/index.php/pelitaeksakta/article/view/45.