boiled water

Everybody must adopt personal hygienic habits

Everybody must adopt personal hygienic habits (1952, July)

Water and contagious diseases -- How to treat water to avoid contagious diseases?

Water and contagious diseases -- How to treat water to avoid contagious diseases? (1952, July)

Fire prevention

Fire prevention (1967)

Oppose evil sects, happiness and health -- Warning education wall charts

Oppose evil sects, happiness and health -- Warning education wall charts (2003)

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