1. Andrews’ Diseases of the Skin: Clinical Dermatology;RB Odom,2006
2. Alopecia areata;R Dawber;Monogr Dermatol,1989
3. The pattern and profile of alopecia areata in Singapore—a study of 219 Asians;E Tan;Int J Dermatol,2002
4. Trichology: Diseases of the Pilosebaceous Follicle;F Camacho,1997
5. Alopecia areata: A review;SA Syed;Journal of the Saudi Society of Dermatology & Dermatologic Surgery,2013