APA-ийн эшлэл(7 дахь хэвлэлт)

BAKAR, O. (1992). Classification of knowledge in Islam: A study in Islam-ic philosophies of science. Institut Kajian Dasar.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

BAKAR, Osman. Classification of Knowledge in Islam: A Study in Islam-ic Philosophies of Science. Kuala Lumpur: Institut Kajian Dasar, 1992.

MLA -ийн эшлэл (9 дэх хэвлэлт)

BAKAR, Osman. Classification of Knowledge in Islam: A Study in Islam-ic Philosophies of Science. Institut Kajian Dasar, 1992.