Gaya APA
INSANI, M, D. (2008).
Workbook science: grade 2 semester 1 .
Malang:
Laboratory Basic Education State University of Malang.
Gaya MLA
INSANI, Metri, Dian.
"Workbook science: grade 2 semester 1".
Malang:
Laboratory Basic Education State University of Malang,
2008.
Text.