Batlajery, Semuel, and Marlyn E. Alfons. “Implementation of Product Model, Price, Place, Promotion in Improving Noken Sales (OAP)”. International Journal of Social Science and Business 5, no. 1 (March 15, 2021): 149–154. Accessed December 26, 2024. https://ejournal.undiksha.ac.id/index.php/IJSSB/article/view/29268.