Gaya APA

Siddiqul, M, H. (2009). Encyclopaedia of educational technology : distance learning technologies in education [Vol. 4] . New Delhi: APH Publishing Corporation.

Gaya MLA

Siddiqul, Maujibul, Hasan. "Encyclopaedia of educational technology : distance learning technologies in education [Vol. 4]". New Delhi: APH Publishing Corporation, 2009. Text.