1. Wang, D., Chen, T., & Dong, J. (2014). Research of the early warning analysis of crop diseases and insect pests. IFIP advances in information and communication technology (pp. 177–187). Berlin: Springer.
2. Agrawal, R. (2001). Forecasting techniques in crops. I,A.S.R.I., Library Avenue, New Delhi—110 012.
3. PSA. (2015). Major crops statistics of the Philippines-Regional and Provincial (2010–2014). Philippine Statistics Authority. pp. 22.
4. Alberto, R. T., Santiago, S. E., Black, L. L., & Miller, S. A. (2002). Screening commercial onion cultivars for resistance to anthracnose. Final Report. Integrated Pest Management-Collaborative Research Support Program. Office of International Research and Development, Virginia Tech, VA. USA.
5. Alberto, R. T., & Aquino, V. M. (2010). Characterization of Colletotrichumgloeosporioides (Penzig) Penzig and Sacc. (Anthracnose) and GibberellamoniliformisWineland (Twister) infecting onions in the Philippines. Asia Life Sciences, 19(1), 1–36.