J. A. Alfa, “Performance of Sorghum/Soyabean Intercrop as Influenced by Cultivar and Row Arrangement in the Northern Guinea Savanna Vegetational Belt of Nigeria”, IJSBAR, vol. 24, no. 5, pp. 184–203, Nov. 2015, Accessed: Sep. 27, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/4568