“Determination of the Balancing Moment of the Six-Link Straight-Line Conversion Mechanism of the Beamless Rod Pump Drive”. ҚазҰУ Хабаршысы. Математика, механика, информатика сериясы, vol. 110, no. 2, Sept. 2021, pp. 76-86, https://doi.org/10.26577/JMMCS.2021.v110.i2.07.