Gaya APA
Dirgeyasa, I, W., Hartoyo, :, I. (2019).
The Art of scientific writing: a comprehensive and practical guide .
Medan:
FBS Unimed Press.
Gaya MLA
Dirgeyasa, I, Wy.., Hartoyo, :, Indra.
"The Art of scientific writing: a comprehensive and practical guide".
Medan:
FBS Unimed Press,
2019.
Text.