Widyastuti N, Riswandi R, Fitriawan H. The Development of Advance Organizer Based Distance Learning in Chemistry Bonding Material. J. Educ. Technol. [Internet]. 2021 Jun. 20 [cited 2024 May 3];5(2):228-35. Available from: https://ejournal.undiksha.ac.id/index.php/JET/article/view/33613