Delvie Oktavia, and Amirudin. “The Effects of Liquidity, Profitability and Activity on Stock Price on PT Merck Tbk Period 2013 – 2022”. Journal of Investment Development, Economics and Accounting 1, no. 1 (March 21, 2024): 39 -. Accessed July 6, 2025. https://ojs.ideanusa.com/index.php/JIDEA/article/view/142.