Morton JF (1987). "Passionfruit, p. 320–328; In: Fruits of Warm Climates". NewCrop, Center for New Crops and Plant Products, Department of Horticulture and Landscape Architecture at Purdue University, W. Lafayette, Indiana. مؤرشف من الأصل في 2023-03-14. اطلع عليه بتاريخ 2020-01-22.
Morton JF (1987). "Passionfruit, p. 320–328; In: Fruits of Warm Climates". NewCrop, Center for New Crops and Plant Products, Department of Horticulture and Landscape Architecture at Purdue University, W. Lafayette, Indiana. مؤرشف من الأصل في 2023-03-14. اطلع عليه بتاريخ 2020-01-22.