Islam และ Tohidul. (2006) Potential for collaborative management of Doi Suthep-Pui national park /. Kasetsart University,:ม.ป.ท.Islam และ Tohidul. 2006. Potential for collaborative management of Doi Suthep-Pui national park /. ม.ป.ท.:Kasetsart University,;Islam และ Tohidul. Potential for collaborative management of Doi Suthep-Pui national park /. ม.ป.ท.:Kasetsart University, 2006. Print.