1. Lopez-Ojeda, W., Pandey, A., Alhajj, M. and Oakley, A.M. (2024) Anatomy, Skin (Integument). StatPearls Publishing, Treasure Island. https://www.ncbi.nlm.nih.gov/books/NBK441980/
2. Air pollution and skin disorders
3. Marieb, E.N. and Hoehn, K. (2019) Human Anatomy and Physiology. 11th Edition, Pearson Education Ltd.
4. Epidermal Thickness at Different Body Sites: Relationship to Age, Gender, Pigmentation, Blood Content, Skin Type and Smoking Habits
5. Murthy, S.N. and Shivakumar, H.N. (2010) Topical and Transdermal Drug Delivery. In: Kulkarni, V.S., Ed., Handbook of Non-Invasive Drug Delivery Systems, Elsevier Inc., 1-36.