Camaso, E. , Damian, G. , Isip, M. , Alberto, R.. "Landcover Mapping Using Lidar Data and Aerial Image and Soil Fertility Degradation Assessment for Rice Production Area in Quezon, Nueva Ecija, Philippines". World Academy of Science, Engineering and Technology, Open Science Index 127, International Journal of Computer and Systems Engineering (2017), 11(7), 535 - 540.