Abubakar, I. A. (2015). Parental influence, career-related variables, self-efficacy and educational aspiration: Predictors of academic achievement among secondary school children in Nigeria. Kulliyyah of Education, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abubakar, Isa Ado. Parental Influence, Career-related Variables, Self-efficacy and Educational Aspiration: Predictors of Academic Achievement Among Secondary School Children in Nigeria. Kuala Lumpur: Kulliyyah of Education, International Islamic University Malaysia, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abubakar, Isa Ado. Parental Influence, Career-related Variables, Self-efficacy and Educational Aspiration: Predictors of Academic Achievement Among Secondary School Children in Nigeria. Kulliyyah of Education, International Islamic University Malaysia, 2015.