Casil, Julius G.  <br/><br/>
Determination of angstrom constants used in estimating solar radiation in the cities of Laoag and Batac  
Julius G. Casil  
 -  2008  
 - xiii, 63 leaves   28 cm. 
<br/><br/> Thesis (BS Agricultural Engineering) -- Mariano Marcos State University-College of Agriculture & Forestry, Batac City 
<br/><br/>Bibliography: leaves 46-47