Randomness and Optimal Estimation in Data Sampling is mathematical.
Research Paper Internet Library has extensive varied learning materials.
Research Room give a step-by step approach
Business Research Lab is good for surveys
Research Methods Knowledge Base primer on business/social research.
Forecasting. Principles of is comprehensive.
Social Research Methods University of Edinburgh
History: Reading, Writing, and Researching from Bowdoin College
Statistics Software Tutorials
Software Innovation from Global Text
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