Chanvit Tabtim. (2000) Some factors affecting performane achievement of the investigators in Metropolitan Police Bureau. Mahidol University,:ม.ป.ท.Chanvit Tabtim. 2000. Some factors affecting performane achievement of the investigators in Metropolitan Police Bureau. ม.ป.ท.:Mahidol University,;Chanvit Tabtim. Some factors affecting performane achievement of the investigators in Metropolitan Police Bureau. ม.ป.ท.:Mahidol University, 2000. Print.