Sari, Dilara Bahtiyar, and Nedim Yüzbaşioğlu. “Productivity in Professional Tourist Guides: A Scale Development Study With Mixed-Methods Sequential Exploratory Design”. Anais Brasileiros de Estudos Turísticos 14, no. 1 (April 30, 2024). Accessed July 17, 2024. https://periodicos.ufjf.br/index.php/abet/article/view/43336.