Salwa, Salwa, 		Aini, Qurratul, AND 		Switrayni, Ni Wayan.
" β-Dual Dari Ruang Barisan (N̅,Δλ)<sub>	∞</sub>, (N̅,Δλ), Dan (N̅,Δλ)<sub>O</sub>" <em>Jurnal Matematika</em> [Online], Volume 11 Number 2 (10 January 2022)