APA (7th ed.) Citation

Guswai, C. F. (2011). My retail formula. Gramedia Pustaka Utama.

Chicago Style (17th ed.) Citation

Guswai, Christian F. My Retail Formula. Gramedia Pustaka Utama, 2011.

MLA (8th ed.) Citation

Guswai, Christian F. My Retail Formula. Gramedia Pustaka Utama, 2011.

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