Analisis January Effect, Week Four Effect, dan Holiday Effect Terhadap Return di Bursa Efek Indonesia Periode 2016 – 2025. JEKWS [Internet]. 28 Juli 2026 [dikutip 5 Agustus 2026];4(03):388-9. Tersedia pada: https://wnj.westsciences.com/index.php/jekws/article/view/3723