Tantia, and Nurmairina. “IMPROVING STUDENT LEARNING OUTCOMES BY USING PROBLEM BASED LEARNING MODEL IN LEARNING THEMATIC CLASS III THEME OF GROWTH AND DEVELOPMENT OF LIVING CREATURES”. JOURNAL OF HUMANITIES AND SOCIAL STUDIES, vol. 2, no. 03, Aug. 2024, pp. 1230-49, https://humasjournal.my.id/index.php/HJ/article/view/387.