Akbarov Ummatali Yigitaliyevich and Isaboyeva Dilyora Zokirjon qizi (2022) “SECOND IN ORDER PARAMETERIZED PRIVATE DERIVATIVE DIFFERENTIAL EQUATIONS”, JournalNX - A Multidisciplinary Peer Reviewed Journal, 8(12), pp. 489–498. doi: 10.17605/OSF.IO/MTB5R.