HUMAN CAPITAL INVESTMENT AND FIRM VALUE OF QUOTED MANUFACTURING COMPANIES IN NIGERIA. Amer. Jour. of Rese. in Human. and Soci. Scie. [Internet]. 2023 Sep. 14 [cited 2025 Oct. 12];16:41-52. Available from: https://americanjournal.org/index.php/ajrhss/article/view/1209