Gupta, O. P. (1965). The teaching of social studies in selected elementary schools of Quezon City and their implications for Kathmandu, the capital city of Nepal. s.n.].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিGupta, Om Prakash. The Teaching of Social Studies in Selected Elementary Schools of Quezon City and Their Implications for Kathmandu, the Capital City of Nepal. [Quezon City: s.n.], 1965.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিGupta, Om Prakash. The Teaching of Social Studies in Selected Elementary Schools of Quezon City and Their Implications for Kathmandu, the Capital City of Nepal. s.n.], 1965.
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