Essential qualitative methods :

Eitemau Tebyg

• An Introduction to Applied Econometrics a Time Series Approach
  gan: Patterson, Kerry
  Cyhoeddwyd: (2002)
• Quantitative methods
  gan: Agarwal, D.R
  Cyhoeddwyd: (2012)
• Quatitative aspects of science and technology: An introduction
  gan: Aldridge , Bill G
  Cyhoeddwyd: (1967)
• Wiley quatitative aptitude: for competitive examinations/
  gan: Anand P A
  Cyhoeddwyd: (2015)
• Essential quantitative methods : a guide for business
  gan: Oakshott, Les
  Cyhoeddwyd: (2015)