Varaporn Sriprang และ Pachara Mongkolsuk. (2010) Taxonomy of discolichens at Phu Luang Wildlife Sanctuary, Loei province /. Ramkhamhaeng University,:ม.ป.ท.Varaporn Sriprang และ Pachara Mongkolsuk. 2010. Taxonomy of discolichens at Phu Luang Wildlife Sanctuary, Loei province /. ม.ป.ท.:Ramkhamhaeng University,;Varaporn Sriprang และ Pachara Mongkolsuk. Taxonomy of discolichens at Phu Luang Wildlife Sanctuary, Loei province /. ม.ป.ท.:Ramkhamhaeng University, 2010. Print.