Yulianto Y, Octafilia Y. Determinants of Stock Returns: The Role of Profitability, Valuation Ratios, and Firm Size in the Jakarta Islamic Index (2016–2020). RAJ [Internet]. 2025Apr.30 [cited 2026Feb.25];6(1):11-24. Available from: https://journal.yrpipku.com/index.php/raj/article/view/10458