Gordo, G.
(2013).
 Estimating Philippine Bank Efficiencies Using Frontier Analysis.
<em>Philippine Management Review, 20</em>.
Retrieved from <a href="https://www.journals.upd.edu.ph/index.php/pmr/article/view/3594" target="_new">https://www.journals.upd.edu.ph/index.php/pmr/article/view/3594</a>