@misc{ais_repository_1187, title = {Analisis Kebutuhan Udara Pada Front Kerja A1C Tambang Bawah Tanah PT. Guguk Tinggi Coal (GTC), Kecamatan Talawi, Kota Sawahlunto, Sumatera Barat}, author = {None}, year = {2019}, publisher = {}, howpublished = {Repository AIS}, note = {oai:ais:library-item:2731} }