Vodchyts, Oleksandr, Serhii Drovnin, Ihor Cheked, Evgeniy Zelinsky, and Konstantyn Lutchenko. 2025. “Qualification Requirements for Ground Aviation Specialists in Fuel and Lubricant Quality Control”. International Science Journal of Engineering & Agriculture 4 (3):81-88. https://doi.org/10.46299/j.isjea.20250403.07.