1. L. G. Marchenko, A. V. Rusak, and M. E. Smekhova, Farm. Tekhnol. Upakovka, No. 2, 49-60 (2008).
2. A. I. Tikhonov and T. G. Yarnykh, Drug Technology [in Russian], Original, Kharkov (2006), pp. 407–414.
3. USP Pharmacists’Pharmacopeia, The United States Pharmacopeia, Inc., Rockville (2008).
4. Ukraine State Pharmacopeia, Suppl. 2, Derzhavne Pidpriemstvo “Naukovo-Ekspertnii Farmakopeinii Tsentr, Kharkiv (2008).
5. Kh. M. Komilov, Ya. K. Nazirova, and K. S. Makhmudzhanova, Khim.-farm. Zh., 43(10), 50-51 (2009).