Gaya APA
Sinaga, J, D.
(2020).
Self Counseling
(
Ed. 1, Cet. 1)
.
Yogyakarta:
Graha Ilmu.
Gaya MLA
Sinaga, Juster, Donal.
"Self Counseling".
Ed. 1, Cet. 1
Yogyakarta:
Graha Ilmu,
2020.
Text.