7Odigboh E U,Moreira,C A Development of a complete cassava harvester:I-conceptualization[J].Agricultural Mechanization in Asia Africa and Latin America,2002,33(4):43-49.
10Gupta C P, Stevens W F, Paul S C. Development of a vibrating cassava root harvester[J]. Agricultural Mechanization in Asia, Africa and Latin America, 1999, 30(1): 51-55.