M. F. Z. Omar, A. H. Daud, and K. Fithri, “Development of metering device for precise hybrid rice seeder”, etr, vol. 1, no. 1, pp. 22–24, Mar. 2017, Accessed: Jul. 01, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/etr/article/view/1250