@book{18062,
	author = {Lumabao, Von Ryan S.},
	title = {The Evaluation of the occurrence of variation orders in the construction industry of Ilocos Norte /},
	publisher = {City of Batac :},
	year = {2022},
	address = {MMSU},
	note = {Thesis (BS Civil Engineering) - Mariano Marcos State University -- College of Engineering, City of Batac, 2022.}
}