Gaya APA

putra, A, P., Suyatno, . (2015). Universal concept of logical thinking = konsep universal berpikir logis . Jakarta: UHAMKA PRESS.

Gaya MLA

putra, Aldhiansyah, Purnama., Suyatno, . "Universal concept of logical thinking = konsep universal berpikir logis". Jakarta: UHAMKA PRESS, 2015. Text.