Vol. 6 No. 1 (1997): Articles
Published:
1997-12-30
E-ISSN: 2945-4093
University of Northern Philippines, Tamag, Vigan City, Ilocos Sur, Philippines
Email: vector@unp.edu.ph Tel No: 077 – 604 - 5479
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.