Preis S.B., Kamenev S.B., Callas Yu.l. Oxidative treatment of phenol-containing waste water from thermal processing of shale // Chemistry and technology ofwater. - 1994. T. 16, No. 1, - S. 83-91.
Kubelka V., Binko l. Synthetic tanning agents. - M.: Gizlegprom, 1959, 160.
Parpiev Umidjon Melievich; Ismatullaev Nizom Adashaliyevich; Khomidzhonov Frail son of Abrorjon. Research the top and asatrlcs materials for men shoes, DOl: 10.5958/22497137.2020.00669.2
https://science.i-edu.uz/index.php/archive_jspi/article/download/1864/1438/5133
Rustamov S.M., Makhmudov F.T., Bashirova 3.3. Local sorption treatment of industrial waste water from phenol // Chemistry and technology of water. - 1994. T. 16, No. 1. - S.69-72.
Engineering, 2019, 11, 320-325
http://www.scirp.org/journal/eng ISSN Online: 1947-394X ISSN Print: 1947-3931.
Yaroshenko H.A. Influence of temperature and acidity of the medium On ultrafiltration fractionation of tanning solutions // Kozhev.- footwear, industry. 1989. No. 8. - S. 41-42.
Меженинов М.Ю. и др. Производство растительных дубильных экстрактов / М.Ю. Меженинов, М.Н. Красухин, Б.А.Егоров - М.: Ростехиздат, 1962. - 292 с.