VALIDITY OF CAPITAL ASSETS PRICING MODEL (CAPM): EVIDENCE FROM CEMENT SECTOR OF PAKISTAN LISTED UNDER KARACHI STOCK EXCHANGE. AJBMR [Internet]. 2013 Feb. 5 [cited 2026 Sep. 11];2(6):66-81. Available from: https://j.arabianjbmr.com/index.php/ajbmr/article/view/361