Altieri, Miguel A, and Victor M Tolcdo. “Natural Resource Management Among Small-Scale Farmers in Semi-Arid Lands: Building on Traditional Knowledge and Agroecology”. Annals of Arid Zone, vol. 44, no. 3 & 4, Dec. 2016, https://epubs.icar.org.in/index.php/AAZ/article/view/66142.