Setchamroen, A. and Keeratichamroen, W. 2023. A STUDY OF LEARNING ACHIEVEMENT ON BIO-HACKER LEARNING UNITS AND ANALYTICAL THINKING ABILITY OF 4th GRADE ELEMENTARY SCHOOL STUDENTS USING PHENOMENON-BASED LEARNING. Research Community and Social Development Journal. 17, 3 (Sep. 2023), 194–204. DOI:https://doi.org/10.14456/nrru-rdi.2023.45.