Sim, A. B. (1978). Decentralization and performance: A comparative study of Malaysian subsidiaries of different national origins. Faculty of Economics & Administration, University of Malaya : sole distributor, University of Malaya Co-operative Bookshop.

Sim, Ah Ba. Decentralization and Performance: A Comparative Study of Malaysian Subsidiaries of Different National Origins. Kuala Lumpur: Faculty of Economics & Administration, University of Malaya : sole distributor, University of Malaya Co-operative Bookshop, 1978.

Sim, Ah Ba. Decentralization and Performance: A Comparative Study of Malaysian Subsidiaries of Different National Origins. Faculty of Economics & Administration, University of Malaya : sole distributor, University of Malaya Co-operative Bookshop, 1978.