Sopianti DS. VARIATION CONCENTRATION OF SPAN-TWEEN 80 EMULGATOR IN THE CREAM FORMULATION OF RED BETER LEAF (Piper crocatum Ruiz & Pav) ETHANOL EXTRACT BODY SCRUB. Biomed Journal [Internet]. 2023 Jan. 31 [cited 2025 Dec. 21];6(1). Available from: https://ocean-biomedicina.hangtuah.ac.id/index.php/journal/article/view/112