Winai Somprasong และ Sranya Vajrodaya. (2014) Taxonomic revision of the subtribe barleriinae and andrographinae (Acanthaceae) in Thailand. Kasetsart University:ม.ป.ท.Winai Somprasong และ Sranya Vajrodaya. 2014. Taxonomic revision of the subtribe barleriinae and andrographinae (Acanthaceae) in Thailand. ม.ป.ท.:Kasetsart University;Winai Somprasong และ Sranya Vajrodaya. Taxonomic revision of the subtribe barleriinae and andrographinae (Acanthaceae) in Thailand. ม.ป.ท.:Kasetsart University, 2014. Print.