Abotowuro, Samuel, and Patrick Kwabena Amoakoh. “Predictors of the Perceived Difficulties of Senior High School Students’ in Elective Mathematics: Nill”. RA Journal Of Applied Research 5, no. 03 (March 28, 2019): 2387–2395. Accessed April 26, 2024. http://www.rajournals.in/index.php/rajar/article/view/489.