Pangeran, Anugrah, Muhammad Shalahuddin, Raditya Prabaswara, and Rahmat Nurcahyo. “The Effect of David’s Strategies Implementation on Pharmaceutical Company Before and During COVID-19 (A Case Study: PT. Kalbe Farma Tbk)”. Prosiding Seminar Nasional Teknik Industri (SENASTI) 1 (October 3, 2023): 669–677. Accessed August 9, 2024. https://ojs.uajy.ac.id/index.php/SENASTI/article/view/7993.