-. (2018). Bumi. Bhuana Ilmu Populer Gramedia.
Chicago Style (17th ed.) Citation-. Bumi. Bhuana Ilmu Populer Gramedia, 2018.
MLA (8th ed.) Citation-. Bumi. Bhuana Ilmu Populer Gramedia, 2018.
Warning: These citations may not always be 100% accurate.