Faiza, Hilda Wahyu, et al. “Effect Of 70% Ethanol And 70% Methanol Solvents On Total Phenol Content Of Beetroot Extracts”. JHSS (Journal of Humanities and Social Studies), vol. 10, no. 1, Feb. 2026, pp. 247-50, doi:10.33751/jhss.v10i1.62.