“A Novel Semi Automated On-Line Determination of Oxonium Ion Via Precipitation Reaction Using a New Mode of Attenuated Measurement of Incident Light (0 – 180o) by AYAH 5SX4-ST-5D Solar CFI Analyser”. 2023. Iraqi Journal of Science 55 (4B): 1736-50. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11285.