“PENGUJIAN FENOMENA EFEK SENIN (MONDAY EFFECT) DAN WEEKFOUR EFFECTDI BURSA EFEK INDONESIA”. Jurnal Analisis Bisnis Ekonomi 7, no. 2 (October 28, 2009): 178–190. Accessed October 12, 2026. https://journal.unimma.ac.id/bisnisekonomi/article/view/311.