WIWIK KARTIKA SARI. DEVELOPMENT OF LABORATORY WORKSHEET BASED ON PROBLEM BASED LEARNING TO IMPROVE STUDENT LEARNING OUTCOMES. International Education and Research Journal (IERJ), [S. l.], v. 4, n. 4, 2018. Disponível em: http://ierj.in/journal/index.php/ierj/article/view/1539. Acesso em: 29 jun. 2022.