Mbakaya, Beatrice, et al. “Assessing Adoption of Gross Margin Analysis Technique by Farmer Business School Lead Farmers in Mzuzu and Karonga Agriculture Development Divisions of Malawi”. Journal of Agricultural Extension Management, vol. 18, no. 1, Apr. 2018, https://epubs.icar.org.in/index.php/JAEM/article/view/78697.