Sutrisna SG, Sujana IW, Ambara DP. Problem-based E-Book on Coffee Business Economic Activity Material in Social and Science Learning. Mimb. Ilmu [Internet]. 21 Oktober 2024 [dikutip 4 April 2025];29(2):365-72. Tersedia pada: https://ejournal.undiksha.ac.id./index.php/MI/article/view/83102