Abu Bakar, Norlaili, Norhayati Hashim, Wan Rusmawati Wan Mahamod, Saripah Salbiah Syed Abd Azziz, Yusnita Juahir, Rozita Yahaya, Wong Chee Fah, Ramli Ibrahim, Muhammad Farid Aziz, and Nor Azira Mahmad Basir. “The Potential of Ferrocenium As a Sensing Reagent for Determination of 2,4,6-Trichlorophenol in Water Samples”. Journal of Science and Mathematics Letters 3 (June 1, 2015): 16-23. Accessed August 12, 2022. https://ejournal.upsi.edu.my/index.php/JSML/article/view/345.