Wardi, Wardi, Nafiatul Umami, Asih Kurniawati, Bambang Suhartanto, Chusnul Hanim, and Zen Adyatama. 2023. “Productivity of Butterfly Pea (Clitoria Ternatea L.) Influenced by Urea Fertilizer Rates and Harvest Ages in Kulon Progo, Yogyakarta, Indonesia”. ANIMAL PRODUCTION 25 (1), 14-23. https://doi.org/10.20884/1.jap.2023.25.1.187.