Lumabao, Von Ryan S. <br/><br/>
The Evaluation of the occurrence of variation orders in the construction industry of Ilocos Norte / 
Von Ryan S. Lumabao, Juan Vincent P. Manicad, Ara Mae P. Matias, Laurice Ann V. Paguirigan 
 - MMSU  City of Batac :  2022 
 - xviii, 79 leaves ;  28 cm. 
<br/><br/> Thesis (BS Civil Engineering) - Mariano Marcos State University -- College of Engineering, City of Batac, 2022. 
<br/><br/>Bibliography: leaves 38-41