FAYZULLAEV, A.R.; ASTANOV, S.Kh.; ERGASHEVA, N.M. APPLICATION OF SPECTROSCOPY IN THE PROCESS OF OBTAINING DYES FROM ONION PELL. Eurasian Physical Technical Journal, [S. l.], v. 15, n. 2(30), p. 128–132, 2018. Disponível em: https://phtj.buketov.edu.kz/EPTJ/article/view/531. Acesso em: 23 jan. 2026.