Glenfiddich J. Daymiel, Paulina S. Aspilla, Cinder Dianne Luza – Tabiolo,. “Phytoplankton Primary Productivity And Water Quality Of Lake Danao”. International Journal of Scientific Research And Education 6, no. 4 (April 9, 2018). Accessed December 23, 2024. http://ijsae.in/index.php/ijsae/article/view/875.