@phdthesis{oai:ritsumei.repo.nii.ac.jp:00011172, author = {KYAW, NYUNT MAUNG}, month = {2019-12-05, 2019-12-05, 2019-12-05}, school = {立命館大学}, title = {Assessment of Secondary Reserves of Nations : Aluminum, Copper and Zinc}, year = {} }