Hermanto H, Nursalam N, Akib E. The Andragogical Approach to Improving Critical Thinking Skills in Higher Education: A Systematic Literature Review. PIJED [Internet]. 2025 Dec. 1 [cited 2026 Jul. 11];4(2):460-6. Available from: https://www.ejournal.ppsdp.org/pijed/article/view/745