Asaruddin, M. R., Ezekiel, S., Ariffeen, M. F., & Affan, M. A. (2016). Synthesis and Spectral Characterization of 4-Hydroxy-3- Methoxybenzaldehyde Derivatives. Borneo Journal of Resource Science and Technology, 5(1), 43–48. https://doi.org/10.33736/bjrst.283.2015