Yusri, Wilda Triputri, et al. “Synthesis and Characterization of HPMpFBP Using Raman Spectroscopy, Nuclear Magnetic Resonance (NMR) Spectroscopy, and FTIR”. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS, vol. 13, no. 2, Aug. 2021, pp. 109-17, doi:10.25077/jif.13.2.109-117.2021.