Situmeang, R. M., and U. Sudharmono. “Effectiveness Rosy Periwinkle (Catharanthus Roseus L.) Decoction Toward Urea and Creatinine Serum Levels of Male Wistar Strain Rats With Acute Kidney Failure Model”. 11th International Scholars Conference, vol. 7, no. 1, Dec. 2019, pp. 768-79, doi:10.35974/isc.v7i1.2081.