Anwar, S I, R Banerji, S K Chaudhary, B Baboo, R Kumar, and V K Madan. 2006. “Assessment of Comparative Hardness of Sugarcane Varieties at Nodes and Internodes”. Journal of Agricultural Engineering 37 (3). https://epubs.icar.org.in/index.php/JAE/article/view/14084.