Adamu Saleh, Ibrahim, Mohammed Rabiu Mohammed, and Musa Kallamu Hassan. 2022. “Effects of Intellectual Capital (IC) on Return on Assets (ROA): Empirical Evidence from the Nigerian Oil Marketing Companies”. Kashere Journal of Humanities, Management and Social Sciences 2 (2). https://journals.fukashere.edu.ng/index.php/kjhmss/article/view/20.