Narumol Panunumpa. 2004. Ecological characterization of vegetation on limestone mountains in Khao Sam Roi Yod national park, Prachuap Khiri Khan province. Field of Study Forestry, Kasetsart University;
Narumol Panunumpa. (2004) Ecological characterization of vegetation on limestone mountains in Khao Sam Roi Yod national park, Prachuap Khiri Khan province . Kasetsart University/Bangkok.
Narumol Panunumpa. Ecological characterization of vegetation on limestone mountains in Khao Sam Roi Yod national park, Prachuap Khiri Khan province. . Bangkok:Kasetsart University, 2004.
Narumol Panunumpa. (2004) Ecological characterization of vegetation on limestone mountains in Khao Sam Roi Yod national park, Prachuap Khiri Khan province . Kasetsart University/Bangkok.