[1]
Fitri Wahyuningsih, Nana Sepriyanti and Martin Kustati 2025. Study of the Concept of Educational Research Methodology: Research Problem, Variables, Literature Review and Hypothesis. Journal Informatic, Education and Management (JIEM). 8, 1 (Dec. 2025), 445-457. DOI:https://doi.org/10.61992/jiem.v8i1.229.