Lubis, Elfi Lailan Syamita. “The Development of Indonesian Teaching Materials to Improve The Language Skills of Elementary School Students”. Pedagogik Journal of Islamic Elementary School 3, no. 2 (October 22, 2020): 49–58. Accessed July 9, 2025. https://ejournal.iainpalopo.ac.id/index.php/PiJIES/article/view/3043.