TY - JOUR TI - Churn analysis and customer segmentation of a cosmetics brand using data mining techniques AU - KIZILKAYA AYDOĞAN, E. AU - GENCER, C. AU - AKBULUT, S. JO - Sigma Journal of Engineering and Natural Sciences PY - 2008 VL - 26 SP - 43 EP - 57 DO - ER -