1.
Yuliyanah Y, Gumala Y, Yohamintin Y. Implementation of Problem Based Learning Model in 21st Century Learning: Literature Review. J. Bs. Edu. R [Internet]. 2025Jan.16 [cited 2025Jan.22];6(1):1-. Available from: https://cahaya-ic.com/index.php/JBER/article/view/1315