Chaiwat Kanitwaranun และ Chomchin Chantaraskul. (2009) The influence of customer relationship management on health product business : a case of small & medium enterprise in Thailand. Silpakorn University,:ม.ป.ท.Chaiwat Kanitwaranun และ Chomchin Chantaraskul. 2009. The influence of customer relationship management on health product business : a case of small & medium enterprise in Thailand. ม.ป.ท.:Silpakorn University,;Chaiwat Kanitwaranun และ Chomchin Chantaraskul. The influence of customer relationship management on health product business : a case of small & medium enterprise in Thailand. ม.ป.ท.:Silpakorn University, 2009. Print.