Differential equations по Leopando, Gabriel A., Ramos, Frederick O., Berico, Edwin O., Oliquino, Audie B., Gedaria, Carlito V., Corderro, Marcelino S., Diona, Myrna G., Isaac, Emelita A., Torres, Aureluz, L., Publico, Juan L., Jr, Fadrigalan, Catalina M., Batongbakal, Amalia D.R