Chhun, Sreynich, Thongkon, Nisakorn, AND Thanasupsin, Sudtida Pliankkarom. " Method Validation for Determination of Methyltestosterone in Nile Tilapia by Supercritical Fluid with Carbon Dioxide as a Green Extraction Technique for HPLC Analysis" Asian Journal of Fundamental and Applied Sciences [Online], Volume 2 Number 2 (1 July 2021)