Arpina, Agus Haryono, Nomeritae, Yohanes Edy Gunawan, Abudarin, and Yetrie Ludang. “PROBLEM BASED LEARNING CONCEPTS OF BIOLOGY TO IMPROVE OUTCOMES AND ATTITUDES CARING THE ENVIRONMENT”. Acta Scientiae et Intellectus 6, no. 3 (April 5, 2024): 30–41. Accessed October 31, 2024. http://actaint.com/index.php/pub/article/view/204.