Tesfamariam TEKLU และ Teklit Kidane GEBREMEDHIN. (2020) Structural studies of natural zeolites and optimizations for water hardness softening media. <i>Journal of Metals Materials and Minerals</i>, <i>30</i>(1), 109-118.Tesfamariam TEKLU และ Teklit Kidane GEBREMEDHIN. "Structural studies of natural zeolites and optimizations for water hardness softening media". Journal of Metals Materials and Minerals 30 (2020):109-118.Tesfamariam TEKLU และ Teklit Kidane GEBREMEDHIN. Structural studies of natural zeolites and optimizations for water hardness softening media. Metallurgy and Materials Science Research Institute Chulalongkorn University:ม.ป.ท. 2020.