Alimzhanova, Mereke, Yerlan Adilbekov, Yenglik Nurzhanova, and Svetlana Batyrbekova. “Determination of Ethinylestradiol and Norgestrel in Water Using Solid-Phase Microextraction”. Chemical Bulletin of Kazakh National University 83, no. 3-4 (December 30, 2016): 52-62. Accessed November 14, 2024. https://chemistry.kz/bulletin/index.php/kaznu/article/view/700.