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VOLUME 6,ISSUE 12,DECEMBER,2019

Particular

Author Names : Dong-Chul Shin Department of Mechanical Engineering, Koje College, Geoje, Gyeongnam, 53325, Korea

Author Names : M.Amril 1, Catra Indra Cahyadi2, Indah Vusvita Sari3 Aviation Technical and Safety Academy of Medan (ATKP MEDAN) Penerbangan street No.85, Sempakata,. Medan Selayang, Medan, Nothb Sumatera , 20131, Indonesia