Muhlisin A, Sarwanti S, Jalunggono G, Yusliwidaka A, Mazid S, Mohtar LE. Improving students’ problem-solving skills through RIAS model in science classes. CP [Internet]. 2021 Feb. 28 [cited 2025 Jul. 1];41(1):284-9. Available from: https://journal.uny.ac.id/index.php/cp/article/view/47263