@book{19779,
	author = {Balbas, Herbert Y., et al.},
	title = {On prime labeling of some classes of graphs /},
	publisher = {City of Batac :},
	year = {2019},
	address = {MMSU},
	note = {Thesis (BS Mathematics) -- Mariano Marcos State University - College of Arts & Sciences, City of Batac, 2019.}
}