APA (7th ed.) Citation

Boyer, C. (2018). Mengapa? Kepustakaan Populer Gramedia.

Chicago Style (17th ed.) Citation

Boyer, Crispin. Mengapa? Kepustakaan Populer Gramedia, 2018.

MLA (8th ed.) Citation

Boyer, Crispin. Mengapa? Kepustakaan Populer Gramedia, 2018.

Warning: These citations may not always be 100% accurate.