Bontong A, Betaubun M, Lieung K, Walten H. Improving Mathematics Learning Outcomes of Elementary School Students with the Direct Learning Method (An Experimental Study in South Papua). edumaspul [Internet]. 1Mar.2023 [cited 19May2024];7(1):1575-8. Available from: https://ummaspul.e-journal.id/maspuljr/article/view/6301