Sasikirono N, Sumiati S, Indrawati NK. Day of the Week Effect, Initial Returns, and Long-term Market Performance of Initial Public Offerings in the Indonesian Capital Market. IJSBAR. 2018;39(1):96-113. Accessed February 8, 2026. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/9006