Gaya APA
Widjojo,SE., H., S.Pd.,APP.,M.Kes., H, F. (2016).
Professional Waiter (Pramusaji Ahli) (1).
Yogyakarta:
Andi Offset.
Gaya MLA
Widjojo,SE., H.Marsum., S.Pd.,APP.,M.Kes., Hj.Siti, Fauziah,.
"Professional Waiter (Pramusaji Ahli)".
1
Yogyakarta:
Andi Offset,
2016.
Buku.