Gaya APA
Irena, W.
(2013).
1001 Intisari Soal-soal Materi Penting Kimia
.
Jakarta:
Grasindo.
Gaya MLA
Irena, Widelia.
"1001 Intisari Soal-soal Materi Penting Kimia".
Jakarta:
Grasindo,
2013.
Printed Book.