BELLWOOD, Peter et al. Where are the Neolithic Landscapes of Ilocos Norte?. Hukay, [S.l.], v. 13, mar. 2014. ISSN 0119-173X. Available at: <https://www.journals.upd.edu.ph/index.php/asp/article/view/4130>. Date accessed: 29 aug. 2025.