Syahrul, Ninawati, Suyami Suyami, Sumarno Sumarno, Ajisman Ajisman, Refisrul Refisrul, and Salmin Djakaria. 2023. “Manjujai: Social Functions, Local Cultural Values, and Universal Lullabies from West Sumatra, Indonesia”. Migration Letters 20 (5). London, UK:340-53. https://doi.org/10.59670/ml.v20i5.3548.