dkk., S. (2001). Teknik sampling. Gramedia Pustaka Utama.
Chicago Style Citationdkk., SUGIARTO. Teknik Sampling. Gramedia Pustaka Utama, 2001.
MLA Citationdkk., SUGIARTO. Teknik Sampling. Gramedia Pustaka Utama, 2001.
Warning: These citations may not always be 100% accurate.