Rais , Muhammad, Muhammad Yahya, Jamaluddin Jamaluddin, and Purnamawati Purnamawati. “Comparing Project-Based Learning and Problem-Based Learning to Foster 21st-Century Learning Skills in Agricultural Seaweed Product”. Cypriot Journal of Educational Sciences 16, no. 3 (June 30, 2021): 1217–1230. Accessed November 24, 2024. https://un-pub.eu/ojs/index.php/cjes/article/view/5842.