Sailaukhanuly, Y., BokarevaА., & KazbekovaА. (2013). Optimization of determination method of food preservatives sodium benzoate and potassium sorbate in milk and beverages by high performance liquid chromatogrphy. Chemical Bulletin of Kazakh National University, 72(4), 111-117. https://doi.org/https://doi.org/10.15328/chemb_2013_4111-117