Rahman, Mijanur, and Md. Masud Karim. “Macroeconomic and Firm-Specific Determinants of Stock Price Volatility Before and After COVID-19: Evidence from the Pharmaceutical and Chemical Sectors of DSE”. Rajshahi University Journal of Social Science and Business Studies 30 (March 1, 2026): 103–114. Accessed May 31, 2026. https://journal.ru.ac.bd/rujssbs/article/view/120.