Gaya APA
Mahfud, M., Sabara, Z.
(2018).
Industri Kimia Indonesia
.
Yogyakarta:
Deepublish.
Gaya MLA
Mahfud, Mahfud., Sabara, Zakir.
"Industri Kimia Indonesia".
Yogyakarta:
Deepublish,
2018.
Text.