Yen, Siew Hwa and Lim, Hock Eam and Campbell, James K. (2015) Age and productivity of academics: A case study of a public university in Malaysia. Malaysian Journal of Economic Studies, 52 (1). pp. 97-116. ISSN 0126-5350

Kanbur, M. G. and Yen, Siew Hwa and Abu Bakar, Nor'Aznin (1999) Foreign borrowing behaviour of Malaysia. In: Studies in econometrics. Penerbit Universiti Utara Malaysia, Sintok, pp. 19-31. ISBN 9839559575

Kanbur, Mandu G. and Yen, Siew Hwa and Katib, Mohamed Nasser (1991) Price trend of palm oil in Malaysia. Discussion Paper. Universiti Utara Malaysia, Sintok. (Unpublished)