Thitiporn Pooprang. 2001. Systematic study of the lichens family parmeliaceae in Thailand. Field of Study Biology, Ramkhamhaeng University;
Thitiporn Pooprang. (2001) Systematic study of the lichens family parmeliaceae in Thailand . Ramkhamhaeng University/Bangkok.
Thitiporn Pooprang. Systematic study of the lichens family parmeliaceae in Thailand. . Bangkok:Ramkhamhaeng University, 2001.
Thitiporn Pooprang. (2001) Systematic study of the lichens family parmeliaceae in Thailand . Ramkhamhaeng University/Bangkok.