Krishna Iyer, R. (1977). Some factors related to underachievement in mathematics of secondary school students.
استشهاد بنمط شيكاغوKrishna Iyer, R. Some Factors Related to Underachievement in Mathematics of Secondary School Students. 1977.
MLA استشهادKrishna Iyer, R. Some Factors Related to Underachievement in Mathematics of Secondary School Students. 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.