Ginaya G, Kanca IN, Sri Astuti NN. Designing problem-based learning (PBL) model for tourism vocational education in 4.o industry. ijllc [Internet]. 2020 Jan. 9 [cited 2024 Jul. 16];6(1):14-23. Available from: https://sloap.org/journals/index.php/ijllc/article/view/808