Sree Kumari P K & Sukumara Varma A. (1995). Symptomatology and Etiology of Little Leaf Disease of Pepper (Piper nigrum L.). Department of Plant Pathology, College of Horticulture.

Sree Kumari P K and Sukumara Varma A. Symptomatology and Etiology of Little Leaf Disease of Pepper (Piper Nigrum L.). Vellanikkara: Department of Plant Pathology, College of Horticulture, 1995.

Sree Kumari P K and Sukumara Varma A. Symptomatology and Etiology of Little Leaf Disease of Pepper (Piper Nigrum L.). Department of Plant Pathology, College of Horticulture, 1995.