Salah, A. A. Saleh, and S. M Qasem Mofleh. 2024. “The HPLC And FTIR Analytical Techniques To Determination of Para-Phenylenediamine In Some Black Hair Dyes ”. Journal of Science and Technology 30 (1):47-59. https://doi.org/10.20428/jst.v30i1.2588.