Getzov, Petar, and Zoya Hubenova. “RELIABILITY STUDY OF OPERATORS WITHIN A COMPLEX ERGATIC SYSTEM: RELIABILITY STUDY OF OPERATORS WITHIN A COMPLEX ERGATIC SYSTEM”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 5, no. 1 (March 8, 2023): 7–14. Accessed November 22, 2024. https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/105.