C. E. B. Bremekamp. “A REVISION OF THE MALAYSIAN NELSONIEAE (SCROPHULARIACEAE)”. Reinwardtia 3, no. 2 (May 9, 2025): 157–260. Accessed July 21, 2026. https://biologyjournal.brin.go.id/index.php/reinwardtia/article/view/50.