Ala-Harja, H., T. Pitkäkoski, and I. Aaltojärvi. “The Determinants of customers’ Lunch Experiences”. Journal of Hospitality, Vol. 1, no. 3-4, Dec. 2019, pp. 136-47, http://htmjournals.com/jh/index.php/jh/article/view/16.