SYNTHESIS, CHARACTERISATION AND FLUORESCENCE SENSING PROPERTIES OF TETRADENTATE N,N’–BIS(SALICYLIDENE)–1,3-PROPANEDIAMINE FOR METAL IONS DETECTION: PRELIMINARY STUDY. (2021). Universiti Malaysia Terengganu Journal of Undergraduate Research, 3(3), 177-182. https://doi.org/10.46754/umtjur.v3i3.229