Multi-source facility location-allocation and inventory problem. - Zhishuang Yao; Loo Hay Lee; Wikrom Jaruphongsa; Vicky Tan; Chen Fei Hui (Eur. J. Oper. Res., 2010)

A study on bunker fuel management for the shipping liner services. - Zhishuang Yao; Szu Hui Ng; Loo Hay Lee (Comput. Oper. Res., 2012)