Zambillo Palma MA, Silva Volpato CE, Castro da Silva F, de Souza P, Silva JA. Soil penetration resistence in coffe plantations cultivated with mechanized and manual systems. Coffee Science - ISSN 1984-3909 [Internet]. 2014Jan.17 [cited 2025Apr.20];8(3):364-70. Available from: http://177.105.2.251/index.php/Coffeescience/article/view/458