Gaya APA
Sihombing, D., Sinurat, L.
(2016).
Guru: manusia kaya arti
(
Cet. 1)
.
Medan:
Unimed Press.
Gaya MLA
Sihombing, Dionsius., Sinurat, Lusius.
"Guru: manusia kaya arti".
Cet. 1
Medan:
Unimed Press,
2016.
Text.