1. Orazbayev B., Ospanov Y., Orazbayeva K., et al. SYSTEM CONCEPT FOR MODELLING OF TECHNOLOGICAL SYSTEMS AND DECISION MAKING IN THEIR MANAGEMENT / editor . — Kharkiv: TECHNOLOGY CENTER PC, 2021. — ISBN: 978-617-7319-33-6. — DOI: 10.15587/978-617-7319-34-3.