Escasinas, A. B. and Escalada, R. G. (1980) “EFFECT OF DIFFERENT METHODS AND TIMING OF WEED CONTROL ON THE YIELD AND YIELD COMPONENTS OF GRAIN SORGHUM”, Annals of Tropical Research, 2(3), pp. 156–164. Available at: https://atr.vsu.edu.ph/article/view/819 (Accessed: 5 December 2025).