Dinh Thanh Khan 2017. A STUDY ON CRYSTALLINE MORPHOLOGY OF AN AlN THICK FILM GROWN ON THE TRENCH-PARTERNED -Al2O3 USING X-RAY DIFRACTION. UED Journal of Social Sciences, Humanities and Education. 7, 5 (Dec. 2017), 14-17. DOI:https://doi.org/10.47393/jshe.v7i5.821.