Gaya APA
Technologies, E. et al (2016).
Widya Wiyata Pertama - Alam - Seri 8 - Bumi dan Angkasa .
:
Educational Technologies.
Gaya MLA
Technologies, Educational. et al.
"Widya Wiyata Pertama - Alam - Seri 8 - Bumi dan Angkasa".
:
Educational Technologies,
2016.
Text.