Gaya APA

Widodo, G, Y. (2016). How To Become A Highly Qualified Instructor : Cara-cara Rahasia Menjadi Instruktur Hebat (Cet.1). Yogyakarta: Diandra Kreatif.

Gaya MLA

Widodo, Gian, Y.. "How To Become A Highly Qualified Instructor : Cara-cara Rahasia Menjadi Instruktur Hebat". Cet.1 Yogyakarta: Diandra Kreatif, 2016. Text.