Gaya APA
Somadinata, Y.
(2021).
When, What, Why, Who, Where & How : Alam Semesta
.
Jakarta:
PT Elex Media Komputindo.
Gaya MLA
Somadinata, Yusuf.
"When, What, Why, Who, Where & How : Alam Semesta".
Jakarta:
PT Elex Media Komputindo,
2021.
Text.