Definition of fundamentals:
fundamental principle, staple, element, burning issue/question, foundation, rudiments, ABC, concern, basic principle, alphabet, core, essentials, basics, elements, feature, key, priority, grammar, essence, basis, bedrock.
- "Wage Earning and Education", R. R. Lutz.
- "Comrade Yetta", Albert Edwards.
- "Principles of Teaching", Adam S. Bennion.