Langi’, W. L., Y. Padallingan, and M. L. Parumbuan. “The Application of Project Based Learning Model in the Implementation of the Merdeka Curriculum to Enhance Students’ Concept Mastery in IPAS Learning”. Edumaspul: Jurnal Pendidikan, Vol. 8, no. 2, Oct. 2024, pp. 5331-8, doi:10.33487/edumaspul.v8i2.8780.