George Argent, and Yasper Michael Mambrasar. “RHODODENDRON WIDJAJAE (ERICACEAE, SECTION SCHISTANTHE) A NEW SPECIES FROM SULAWESI”. Reinwardtia 18, no. 1 (May 9, 2025): 27‒30. Accessed July 4, 2026. https://biologyjournal.brin.go.id/index.php/reinwardtia/article/view/471.