Siringan, F., & 		Ringor, C.
(2007).
 Changes in the Position of the Zambales Shoreline Before and After the 1991 Mt. Pinatubo Eruption: Controls of Shoreline Change.
<em>Science Diliman: A Journal Of Pure And Applied Sciences, </em>.
Retrieved from <a href="https://journals.upd.edu.ph/index.php/sciencediliman/article/view/265" target="_new">https://journals.upd.edu.ph/index.php/sciencediliman/article/view/265</a>