Birhi, D. N. (2026) “PRELIMINARY PHYTOCHEMICAL ANALYSIS OF THE METHANOL EXTRACT OF RHODODENDRON RENSCHIANUM FLOWERS, ENDEMIC TO KELIMUTU NATIONAL PARK, INDONESIA, USING UV–VIS SPECTROPHOTOMETRY”, Walisongo Journal of Chemistry, 9(1), pp. 112–126. doi: 10.21580/wjc.v9i1.32005.