Yupadee Hengjan และ Thongchai Ngamprasertwong. (2011) Seasonal variation in emergence and activity pattern at roosting site of lyle's flying Pteropus lylei Andersen, 1908 at Pho, Chachoengsao province. Chulalongkorn University:ม.ป.ท.Yupadee Hengjan และ Thongchai Ngamprasertwong. 2011. Seasonal variation in emergence and activity pattern at roosting site of lyle's flying Pteropus lylei Andersen, 1908 at Pho, Chachoengsao province. ม.ป.ท.:Chulalongkorn University;Yupadee Hengjan และ Thongchai Ngamprasertwong. Seasonal variation in emergence and activity pattern at roosting site of lyle's flying Pteropus lylei Andersen, 1908 at Pho, Chachoengsao province. ม.ป.ท.:Chulalongkorn University, 2011. Print.