R. C. Tiwari, T. C. Thakur, and M. L. Verma, “Laboratory examination of probe type injectors for ammonia (urea) treatment of baled wheat straw”, JAE, vol. 38, no. 1, Mar. 2001, Accessed: Jun. 30, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/JAE/article/view/14132