Gaya APA
Un, H, Y.
(2002).
Problematika Hamba Tuhan (Trawas)
.
Manado:
Yayasan Daun Family.
Gaya MLA
Un, Han, Yap.
"Problematika Hamba Tuhan (Trawas)".
Manado:
Yayasan Daun Family,
2002.
Text.