“demak” dalam Kevin Blissett dan Dr. Dirk Elzinga, Early Documentation of the Orang Seletar and Sugut Sungai Languages, Utah: Brigham Young University, 2015.
“dəmaʔ” dalam Zhi Xuan Tan, Some Aspects of the language of the Orang Seletar, Singapura: Nanyang Technological University, 2020.
