@book{6320,
	author = {Nocon, Rizalde C. and Nocon, Ederlina, jt. au.},
	title = {Essential mathematics for the modern world /},
	publisher = {C&E Publishing Inc.,},
	year = {2018.},
	address = {Quezon City:},
	edition = {2nd},
	note = {includes appendex and index.}
}