Abdulrokhman Kartonegoro (2013) “A revision of Rhynchoglossum (Gesneriaceae) in Malesia”, Reinwardtia, 13(5), pp. 421–432. Available at: https://biologyjournal.brin.go.id/index.php/reinwardtia/article/view/377 (Accessed: 28 June 2026).