The Mediating Role Of Perceived Usefulness In Investigating The Impact Of Catalysts On The Adoption Of Self Service Technologies (Ssts) By Elderly Patrons In Restaurants: A Conceptual Paper. Int. J. Environ. Sci. [Internet]. 2025 Oct. 7 [cited 2025 Oct. 12];:2010-6. Available from: https://theaspd.com/index.php/ijes/article/view/11095