Orvin A. Lobitos, and Ma Melanie N. Edig. “The Effect of Integrating Poh Shen loh’s Approach in Improving Problem-Solving Skills of Students Involving Quadratic Equation”. Journal of Learning and Educational Policy, vol. 6, no. 1, Jan. 2026, pp. 14-27, doi:10.55529/jlep.61.14.26.