Bustani, Bustani. “Cracking the Book Value Mystery: Understanding Earning Per Share, Price Earning Ratio, and Operational Efficiency in IDX80 Enterprises Indonesia”. Accounting and Finance Studies 4, no. 4 (October 30, 2024). Accessed May 22, 2025. https://profesionalmudacendekia.com/index.php/afs/article/view/1120.