Evaluation of the efficiency of the aqueous and alcoholic extract of Propolis in reducing the incidence of Nosema cerana disease on Apis mellifera honey bees. NTU-JAVS [Internet]. 2023 May 18 [cited 2024 Dec. 4];3(1). Available from: https://journals.ntu.edu.iq/index.php/NTU-JAVS/article/view/488