Исмайылов, А. ., Кожамкулова, Ж. ., & Сулейменова, Ж. (2020). DETERMINATION OF DIFFERENT SITUATIONS OF BTP AND IDENTIFICATION OF ADMISSIBLE METHODS OF SOLVABILITY . Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences, 72(4), 41–47. https://doi.org/10.51889/2020-4.1728-7901.06