Gaya APA
Somadinata, Y.
(2020).
When what why who where dan how Alam semesta
.
Jakarta:
PT. Elex media komputindo.
Gaya MLA
Somadinata, Yusup.
"When what why who where dan how Alam semesta".
Jakarta:
PT. Elex media komputindo,
2020.
Text.