Gaya APA

Nugraha, I, P. (2012). Portugal, Spanyol, Maroko: Traveling aman, hemat, & nikmat (Cet. 1). Yogyakarta: B First.

Gaya MLA

Nugraha, Indra, P.. "Portugal, Spanyol, Maroko: Traveling aman, hemat, & nikmat". Cet. 1 Yogyakarta: B First, 2012. 900_History and Geography.