Doloksaribu RP, Maharani AP, Qadri RA. Efficient market theory on trial: The case of PT Semen Indonesia. JOLAS [Internet]. 5 Januari 2025 [dikutip 5 November 2026];5(1):16-33. Tersedia pada: http://mail.jurnalku.org/index.php/jolas/article/view/844