Mariesi, A., Vakili, M.Z. and Chalabi, K.N.N. 2024. Application of the Gagnon and Collay Model in Improving High School Students’ Learning Outcomes in Biology Subjects. Indonesian Journal of Education Research (IJoER). 5, 3 (Jun. 2024), 76-83. DOI:https://doi.org/10.37251/ijoer.v5i3.989.