Gaya APA

Gorden,Jon, . (2013). Self Improvement 101 . Surabaya:: Surabaya: PT. Menuju Insan Cemerlang, 2013.

Gaya MLA

Gorden,Jon, . "Self Improvement 101". Surabaya:: Surabaya: PT. Menuju Insan Cemerlang, 2013, 2013. Text.