Hoirun Nisa, N.; Tambunan , E. P. S. .; Syukriah. Histopathological Changes of the Liver Induced by Sodium Nitrite (NaNO2) And Extract Of Sweet Flag Rhizome (Acorus Calamus L.) Of Rat (Rattus Norvegicus L). LenteraBio 2023, 12, 196-203.