1. Armco. (1949). “Handbook of water control: For the solution of problems involving the development and utilization of water.” Armco Drainage & Metal Products Calco Division Baltimore.
2. Armco Steel Corporation. (1975). “Water measurement tables: For the Armco metergate.” Middleton OH.
3. Ball J. W. (1961). “Flow characteristics and limitations of screw lift vertical metergates.” Rep. No. HYD-471 Bureau of Reclamation Washington DC.
4. Limitations of metergates;Ball J. W.;J. Irrig. Drain. Div.,1962
5. Burt C. M. and Geer E. (2012). “SBx7 flow rate measurement compliance for agricultural irrigation districts.” Irrigation Training and Research Center California Polytechnic State Univ. San Luis Obispo CA.