Vilaiwan Anusarnsunthorn. 2004. The Molecular Phylogenetic Studies of Didymocarpus Wall. in Gesneriaceae. Chiang Mai:Chiangmai University;
Vilaiwan Anusarnsunthorn. (2004) The Molecular Phylogenetic Studies of Didymocarpus Wall. in Gesneriaceae (รายงานผลงานวิจัย). Chiangmai University:Chiang Mai.
Vilaiwan Anusarnsunthorn. The Molecular Phylogenetic Studies of Didymocarpus Wall. in Gesneriaceae. Chiang Mai:Chiangmai University, 2004.
Vilaiwan Anusarnsunthorn. (2004) The Molecular Phylogenetic Studies of Didymocarpus Wall. in Gesneriaceae (รายงานผลงานวิจัย). Chiangmai University:Chiang Mai.