Machitidze I, Bakhtadze I. Enriching PhD Education through Professor Assistantships and Research Collaborations-Insights from Columbia Teachers College and Drawing Parallels with PhD Programs in Georgian Universities. ESI Preprints [Internet]. 2025 Apr. 8 [cited 2026 May 26];40:65. Available from: https://esipreprints.org/index.php/esipreprints/article/view/1992