APA Style

Inc., D, C, A, A. et al (2012). The sales advantage : bagaimana meraih penjualan, mempertahankannya, dan menjual lebih banyak lagi = The sales advantage : how to get it, keep it, and sell more than ever (1st). Jakarta: Esensi.

MLA Style

Inc., Dale, Carnegie, And, Associates,. et al. "The sales advantage : bagaimana meraih penjualan, mempertahankannya, dan menjual lebih banyak lagi = The sales advantage : how to get it, keep it, and sell more than ever". 1st Jakarta: Esensi, 2012. Text.