Davidson, V. C. (2018). The Effect Of Stem Problem-Based Learning On Achievement In Simple Machines, Interest In Learning Science And Self-Regulated Learning In Science Among Junior Secondary School Students In Nigeria.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Davidson, Vincent Chukwujekwu. The Effect Of Stem Problem-Based Learning On Achievement In Simple Machines, Interest In Learning Science And Self-Regulated Learning In Science Among Junior Secondary School Students In Nigeria. 2018.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Davidson, Vincent Chukwujekwu. The Effect Of Stem Problem-Based Learning On Achievement In Simple Machines, Interest In Learning Science And Self-Regulated Learning In Science Among Junior Secondary School Students In Nigeria. 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.