Bukhalova, Natalya, and Olga Pavlova. “Social Management for People Later Age in Service Sector: Status and Prospects”. International Journal of Industrial Engineering and Management 11, no. 3 (September 30, 2020): 170–179. Accessed March 4, 2025. https://jged.uns.ac.rs/index.php/ijiem/article/view/90.