APA (7th ed.) Citation

Sobari, N., & Usman, H. (2009). Teknik analisis data life time dalam riset marketing. Salemba Empat.

Chicago Style (17th ed.) Citation

Sobari, Nurdin, and Hardius Usman. Teknik Analisis Data Life Time Dalam Riset Marketing. Salemba Empat, 2009.

MLA (8th ed.) Citation

Sobari, Nurdin, and Hardius Usman. Teknik Analisis Data Life Time Dalam Riset Marketing. Salemba Empat, 2009.

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