Rini Andriani, et al. “Sistem Fonem Vokal Dalam Bahasa Minang: Vocal Phonem System in Minang Language”. Wacana : Jurnal Bahasa, Seni, Dan Pengajaran, vol. 7, no. 2, Oct. 2023, pp. 112-20, https://doi.org/10.29407/jbsp.v7i2.20430.