Rahmayeni, Rahmayeni, Zulhadjri Zulhadjri, Yeni Stiadi, Agusnar Harry, and Syukri Arief. 2020. “Synthesis of ZnO/ZnFe2O4 Nanocomposites in Organic-Free Media and Their Photocatalytic Activity under Natural Sunlight”. Journal of Mechanical Engineering and Sciences 14 (2), 6801 -10. https://doi.org/10.15282/jmes.14.2.2020.20.0532.