Dararat Amponpun และ Jirawat Chewaroungroaj. (2010) Walk rate prediction for slimhole driling in the gulf of Thailand. Chulaongkorn University:ม.ป.ท.Dararat Amponpun และ Jirawat Chewaroungroaj. 2010. Walk rate prediction for slimhole driling in the gulf of Thailand. ม.ป.ท.:Chulaongkorn University;Dararat Amponpun และ Jirawat Chewaroungroaj. Walk rate prediction for slimhole driling in the gulf of Thailand. ม.ป.ท.:Chulaongkorn University, 2010. Print.