Iftitah, S. N., Rahmawati, N. B. A. ., Utami, R. P. ., & Vatjarjinanto, V. (2023). The Effect of Different Types Manure and Altitude on Wheat Production. Gontor Agrotech Science Journal, 9(2), 102–108. https://doi.org/10.21111/agrotech.v9i1.9555