Mochamad Achyarsyah, Heny Hendrayati, Suryana, Disman , Poppy Puspitasari. “Entrepreneur Innovation in Product Packaging: Automatic Continuous Sealer With Air Filling to Improve Quality and Productivity of Small Medium Enterprises’ Products”. International Journal of Advanced Science and Technology 29, no. 7s (April 14, 2020): 304 - 313. Accessed September 25, 2021. https://sersc.org/journals/index.php/IJAST/article/view/9444.