Gaya APA
Tobias, C. (2013).
Fitness : Gak Main - Main Manfaatnya, Gak Main - Main Hasilnya .
Jakata:
Gramedia Pustaka Utama.
Gaya MLA
Tobias, Coach.
"Fitness : Gak Main - Main Manfaatnya, Gak Main - Main Hasilnya".
Jakata:
Gramedia Pustaka Utama,
2013.
Book.