Gatmaytan, A.
(2011).
 The River of Exchange: Music of Agusan Manobo and Visayan Relations in Caraga, Mindanao, Philippines (2008).
<em>Social Science Diliman: A Philippine Journal Of Society And Change, </em>.
Retrieved from <a href="https://journals.upd.edu.ph/index.php/socialsciencediliman/article/view/2047" target="_new">https://journals.upd.edu.ph/index.php/socialsciencediliman/article/view/2047</a>