Multicriteria Model of Students' Knowledge Diagnostics Based on the Doubt Measuring Level Method for E&M Learning. - Vasily Valerievich Serbin; K. S. Duisebekova; A. M. Smaiyl; L. M. Alimzhanova; G. D. Zakirova; A. N. Moldagulova; Ryskhan Satybaldiyeva; Yelzhan S. Maulenov (Mob. Inf. Syst., 2019)