HANIN SHOHWATI MUTHI’AH; GHAIDA AZZAHRA; HANA RAHMAWATI; NAILAH HUSNAYAIN. Calculation of SPF Value and Root Analysis on Determining Vitamin C Levels in Sunscreens Using the Fishbone Diagram. Solo International Collaboration and Publication of Social Sciences and Humanities, [S. l.], v. 3, n. 02, p. 237–246, 2025. DOI: 10.61455/sicopus.v3i02.253. Disponível em: https://journal.walideminstitute.com/index.php/sicopus/article/view/253. Acesso em: 25 may. 2026.