APA Citation

Sopiah, & Etta Mamang Sangadji. (2016). Salesmanship: Kepenjualan. Jakarta: Bumi Aksara.

Chicago Style Citation

Sopiah, and Etta Mamang Sangadji. Salesmanship: Kepenjualan. Jakarta: Bumi Aksara, 2016.

MLA Citation

Sopiah, and Etta Mamang Sangadji. Salesmanship: Kepenjualan. Jakarta: Bumi Aksara, 2016.

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