Ya fara aikinsa na wallafe-wallafe a Elsevier a Amsterdam.
Tabbas, mafi mahimmancin jumlar ita ce "Ya fara aikinsa na wallafe-wallafe a Elsevier a Amsterdam, ya katse shi na 'yan shekaru a matsayin darektan jaridar yankin Dutch De Twentsche Courant, don komawa ga wallafe-wallafen kimiyya na duniya a Academic Press a London. "