Soybean Farming Income between Cooperators and Non-Cooperators during Farmer Field School Program in Central Lombok - IndonesiaSylvia Kusumaputri Utami, Mardiana Mardiana, Nani Herawati and Baiq Nurul HidayahE3S Web Conf., 316 (2021) 02030DOI: https://doi.org/10.1051/e3sconf/202131602030