Yield and quality of lettuce cultivars irrigated with treated domestic sewage effluent oleh Eric Mateus Soares Dias, Nildo da Silva Dias, Francisco Vanies da Silva Sá, Cleyton dos Santos Fernandes, Daianni Ariane da Costa Ferreira, Jonath Werissimo da Silva Gomes, Isaura Raquel Dantas Fernandes, Francisco Souto de Sousa Junior