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Hamming code.
Celled animals
What is electromagnetic induction
The earth's crust: the structure and types
Rock salt
Factors affecting the rate of a chemical reaction
Electrical machinery
Euglena green - plant or animal?
The density of oil
Atomic mass: whimsical patterns
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Selected Works.
Self-education of primary school teachers as a personal strategy for teacher
Papyrus - what is it and how it was important in the history of mankind?