@book{91667,
	author = {Yun, Bai,},
	title = {Underground Engineering :},
	publisher = {Academic Press, is an imprint of Elsevier,},
	year = {2019},
	address = {London :},
	note = {Perolehan buku elektronik ScienceDirect (OTP) - Areesh (Pembelian Pukal)},
	url = {https://www-sciencedirect-com.libraryumpsa.idm.oclc.org/book/9780128127025/underground-engineering}
}