1. Bank Negara Malaysia: Key developments in the first half of 2022. Homepage. https://www.bnm.gov.my (2022)
2. Department of Statistics Malaysia: Abridged life tables, 2020–2022. Homepage. https://www.dosm.gov.my. latest release 2022/9/28, upcoming release 2023/9/26
3. Sun Life Malaysia Survey: Cost of living as the biggest retirement worry for Malaysians. Homepage. http://www.sunlifemalaysia.com. released 2022/8/29
4. Utusan Malaysia: Penghantar makanan carum 30% dalam KWSP setiap sebulan. Homepage. https://www.utusan.com.my. released 2023/7/9
5. Employees Provident Fund: Expenditure guide for Malaysians individuals and families. Belanjawanku (2023)