“SYNTHESIS, CHARACTERISATION AND FLUORESCENCE SENSING PROPERTIES OF TETRADENTATE N,N’–BIS(SALICYLIDENE)–1,3-PROPANEDIAMINE FOR METAL IONS DETECTION: PRELIMINARY STUDY”. Universiti Malaysia Terengganu Journal of Undergraduate Research 3, no. 3 (July 31, 2021): 177–182. Accessed October 4, 2026. https://journal.umt.edu.my/umtjur/article/view/229.