@book{297382,
	author = {Isorena, Efren B.},
	title = {Tawid-Dagat : Pag-ugat sa Maritimong Nakaraan ng Pilipino, 67,000 t.n.-900 MK},
	publisher = {Philippine Social Sciences Review},
	year = {2013},
	url = {http://journals.upd.edu.ph/index.php/pssr/issue/view/421/showToc}
}