-. (2004). Kupu-kupu Tak Berkepak. Gramedia Pustaka Utama.
Chicago Style (17th ed.) Citation-. Kupu-kupu Tak Berkepak. Gramedia Pustaka Utama, 2004.
MLA (8th ed.) Citation-. Kupu-kupu Tak Berkepak. Gramedia Pustaka Utama, 2004.
Warning: These citations may not always be 100% accurate.