COUPER, H. (1985). Astronomi. Tira Pustaka.
Chicago Style (17th ed.) CitationCOUPER, Heather. Astronomi. Tira Pustaka, 1985.
MLA (8th ed.) CitationCOUPER, Heather. Astronomi. Tira Pustaka, 1985.
Warning: These citations may not always be 100% accurate.