Syahrul, Ninawati, Suyami Suyami, Sumarno Sumarno, Ajisman Ajisman, Refisrul Refisrul, and Salmin Djakaria. “Manjujai: Social Functions, Local Cultural Values, and Universal Lullabies from West Sumatra, Indonesia”. Migration Letters 20, no. 5 (August 2, 2023): 340–353. Accessed November 22, 2024. https://migrationletters.com/index.php/ml/article/view/3548.