Safarov J.E., Sultanova Sh.A., Aït-Kaddour А., Samandarov D.I., Jumayev B.M. “Optimal Option Drying Silkworm Cocoons With Preserving Qualitative Indicators”. International Journal of Advanced Science and Technology, Vol. 29, no. 9s, May 2020, pp. 2099 -04, http://sersc.org/journals/index.php/IJAST/article/view/14533.