Landas, Markus. “Effect of Integrating a Cooperative Learning Model into Ideal Problem-Solving Instructional Strategy on Senior Secondary School Students’ Reasoning Ability and Achievement in Mole Concept in Chemistry”. Zaria Journal of Educational Studies (ZAJES), vol. 24, no. SPECIAL, Dec. 2024, pp. 71-87, https://zarjes.com/ZAJES/article/view/1515.