Gaya APA
Muhammad, H, F, L. (2010).
Bebas Kanker Tanpa Daging: Have Fun Being a Vegan .
Yogyakarta:
Jogja Great! Publisher.
Gaya MLA
Muhammad, Harry, Freitag, L.
"Bebas Kanker Tanpa Daging: Have Fun Being a Vegan".
Yogyakarta:
Jogja Great! Publisher,
2010.
Buku.