1. (2022, January 20). Vaccine Storage and Handling Guidelines, Ontario, Available online: https://www.health.gov.ng.ca/en/pro/programs/publichealth/oph_standards/docs/reference/vaccine%20_storage_handling_guidelines_en.pdf.
2. Bowles, S. (2022, May 28). Storage and Handling of Vaccines in the Cold Chain. Available online: https://immunize.ca/sites/default/files/resources/1877e.pdf.
3. (2022, December 20). NHS England: Midlands and East (Central Midlands: Leicestershire and Lincolnshire). Policy and Procedure for Maintaining the Vaccine Cold Chain. Available online: https://www.england.nhs.uk/mids-east/wp-content/uploads/sites/7/2015/07/cold-chain.pdf.
4. Improving cold chain systems: Challenges and solutions;Ashok;Vaccine,2016
5. Vaccine cold chain management and cold storage technology to address the challenges of vaccination programs;Pambudi;Energy Rep.,2022