Andrie, Mohamad, 		Taurina, Wintari, AND 		Wulandari, Maya.
" Stability Test of Ointment Protein Combination Snakehead Fish (Channa striata) and Ethanol Extract Leaves (Piper betle L.) Using Kjeldahl Method" <em>JURNAL ILMU KEFARMASIAN INDONESIA</em> [Online], Volume 19 Number 2 (31 October 2021)