1. Population and housing census of Malaysia: Population distribution and basic demographic characteristics 2010. Department of Statistics Malaysia. 2011. Kuala Lumpur.
2. Current population estimates 2017. Department of Statistics Malaysia. 2018. Kuala Lumpur.
3. Husin NM, Shahar S, Din NC, Singh DKA, Chin AV, Razali R, et al. Incidence and predictors of multimorbidity among a multi-ethnic population in Malaysia: a community-based longitudinal study. Aging Clin Exp Res. 2019;31:215.
4. Lim LM, McStea M, Chung WW, Azmi NN, Aziz SAA, Alwi S, et al. Prevalence, risk factors and health outcomes associated with polypharmacy among urban community-dwelling older adults in multi-ethnic Malaysia. PLoS One. 2017;12:3.
5. Mohd Fakhruddin NNIN, Shahar S, Aziz NAA, Yahya HM, Rajikan R. Which aging group prone to have inadequate nutrient intake? Sains Malaysiana. 2016;45:1381–91.