Kholis A, Setiana E, Sibarani CGGT. Developing the Project based Learning using Mobile Media Application among Vocational High School Students in Sumatera Utara Province, Indonesia. IJASSH [Internet]. 2022 Feb. 28 [cited 2024 Nov. 22];1(1):26-33. Available from: https://journal.srnintellectual.com/index.php/ijassh/article/view/36