“STRATEGI PEMBELAJARAN PROBLEM BASED INSTRUCTION; ANALISIS KETERAMPILAN BERPIKIR KRITIS PADA ASAM-BASA”. Jurnal Zarah 11, no. 1 (May 25, 2023): 1–8. Accessed October 7, 2025. https://ojs.umrah.ac.id/index.php/zarah/article/view/4196.