Existence and stability analysis to nonlocal implicit problems with ψ-piecewise fractional operators. RJBAS [انترنت]. 30 ديسمبر، 2022 [وثق 2 أكتوبر، 2026];1(2):11-7. موجود في: https://ojs.abhath-ye.com/index.php/OJSRJBAS/article/view/440