Leveraging knowledge sharing for circular economy practices in small and medium-sized enterprises (SMEs): a pathway to achieving SDGs in Sub-Saharan Africa. - Jianhua Zhang 012; Philip Adu Sarfo; Gideon Adjorlolo; Augustine Appiah; George Nyantakyi; Joshua Kojo Bonzo; Sajjad Alam (J. Enterp. Inf. Manag., 2026)