Akhmad Sopian 2014. Effect of Pruning And Giving Chicken Manure on Growth and Crop Tomato (Lycopersicum esculentum Mill.) Gem varieties F1: Pengaruh Pemangkasan Dan Pemberian Pupuk Kandang Ayam Terhadap Pertumbuhan Dan Hasil Tanaman Tomat (Lycopersicum esculentum Mill.) Varietas Permata F1. Agrifarm: Jurnal Ilmu Pertanian. 3, 2 (Dec. 2014), 40–46.