Andu, Yusrina, Muhammad Hisyam Lee, and Zakariya Yahya Algamal. “Non-Transformed Principal Component Technique on Weekly Construction Stock Market Price”. MATEMATIKA 35, no. 2 (July 31, 2019): 139–147. Accessed November 22, 2024. https://matematika.utm.my/index.php/matematika/article/view/1112.