Marwanto, Rosid, Muhamad Nurdin Matondang Seribulan, and Hanum Isfaeni. “The Effect of Learning Strategy of Assurance, Relevance, Interest, Assessment, and Satisfaction (Puzzle Vs Video) on Ecosystem to Students Cognitive Learning Result”. Biosfer: Jurnal Pendidikan Biologi 7, no. 2 (January 18, 2018): 41–46. Accessed August 31, 2026. https://journal.unj.ac.id/unj/index.php/biosfer/article/view/5611.