Al-ossmi, Laith H. M., and Imad Ibrahim Dawood. “Cohen’s Kappa Curves, New Geometrical Forms of Dual Curves”. Alifmatika: Jurnal Pendidikan Dan Pembelajaran Matematika, vol. 5, no. 2, Dec. 2023, pp. 226-4, doi:10.35316/alifmatika.2023.v5i2.226-246.