Prisana Mutchima. (2000) The applications of geographic information systems in determination of potential areas for ecotourism development : a case study of Koh Kred (Kred Island), Nonthaburi province, Thailand. Mahidol University,:ม.ป.ท.Prisana Mutchima. 2000. The applications of geographic information systems in determination of potential areas for ecotourism development : a case study of Koh Kred (Kred Island), Nonthaburi province, Thailand. ม.ป.ท.:Mahidol University,;Prisana Mutchima. The applications of geographic information systems in determination of potential areas for ecotourism development : a case study of Koh Kred (Kred Island), Nonthaburi province, Thailand. ม.ป.ท.:Mahidol University, 2000. Print.