Sukakul, T., P. Limphoka, and W. Boonchai. “Hair dye allergy and hair dyes in Thai market: A literature review and recommendations”. Thai Journal of Dermatology, vol. 34, no. 4, Dec. 2018, pp. 245-6, https://he02.tci-thaijo.org/index.php/TJD/article/view/162511.