B.T. Yermagambet, M.K. Kazankapova, A.T. Nauryzbayeva, и Zh.M. Kassenova, «SYNTHESIS OF CARBON NANOFIBERS BASED ON HUMIC ACID AND POLYACRYONITRILE BY ELECTROSPINNING METHOD», SCT, вып. 3, сс. 104–110, июн. 2021.