Ruas, João Miguel Francisco, Gustavo Migliorini de Oliveira, Augusto Guilherme de Araújo, Rafael Balan, Leandro Ryiuiti Higashibara, and Otavio Jorge Grigoli Abi Saab. 2013. “Application Technology in Coffee (Coffea Arabica L.): Effect of Air Assistance With Manually Driven Equipment”. Semina: Ciências Agrárias 34 (6):2697-2704. https://doi.org/10.5433/1679-0359.2013v34n6p2697.