Situngkir, Yessy Yerta. “IMPOSITION TECHNIQUE ON WALL CALENDARS IN PRINTING BUSINESS PRODUCTION MANAGEMENT”. Jurnal Ilmiah Publipreneur 9, no. 1 (July 1, 2021): 10–16. Accessed April 19, 2025. https://ojs2.polimedia.ac.id/index.php/JIP/article/view/181.