KOUL B N. (1988). STUDIES IN DISTANCE EDUCATION. ASSOCIATION OF INDIAN UNIVERSITIES.
Chicagoスタイル(17版)引用形式KOUL B N. STUDIES IN DISTANCE EDUCATION. NEW DELHI: ASSOCIATION OF INDIAN UNIVERSITIES, 1988.
MLA(9版)引用形式KOUL B N. STUDIES IN DISTANCE EDUCATION. ASSOCIATION OF INDIAN UNIVERSITIES, 1988.
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