Energy and Economic Efficiency of Maize Agroecosystem under Three Management Strategies in the Frailesca, Chiapas (Mexico) Martinez, F.B.; Guevara, F.; Aguilar, C.E.; Pinto, R.; La O, M.A.; Rodriguez, L.A.; Aryal, D.R. Agriculture-Basel 10(3): 81 2020 https://eurekamag.com/research/070/996/070996391.php