The World Bank, & The International Bank for Reconstruction and Development. The handwashing handbook: A guide for developing a hygiene promotion program to increase handwashing with soap. Washington, DC 20433: The World Bank.
শিকাগো স্টাইলে সাইটেশনThe World Bank, এবং The International Bank for Reconstruction and Development. The Handwashing Handbook: A Guide for Developing a Hygiene Promotion Program to Increase Handwashing With Soap. Washington, DC 20433: The World Bank.
এমএলএ সাইটেশনThe World Bank, এবং The International Bank for Reconstruction and Development. The Handwashing Handbook: A Guide for Developing a Hygiene Promotion Program to Increase Handwashing With Soap. Washington, DC 20433: The World Bank.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.