I am writing this at the request of a member friend who asked me to look into this and provide any help if I can. Sorry to say, but I had gone through this thread earlier and felt disappointed enough to offer any comments.
Here we have a request from a person doing a Ph.D. seeking help for sources of information! I wonder if even this basic fact has not been factored in earlier before attempting the project. This is what makes people say - why is the project being undertaken? Just to get an ornamental title to put before one's name? Hope you do not feel offended at such remarks.
The Topic's Basic Nature
The topic selected is of such a basic nature that I do not think even first-semester students of Premier/Tier-I Business Schools would even think of attempting. What is the purpose of just COLLECTING FACTS about the HRM policies, etc., of two airlines - one in a public sector and the other in the private sector? Unless the purpose is to test or validate some hypothesis or discover new facts or specific competencies?
To conclude, I do not approve of the usage of such language like, "...and upgrade your knowledge level." with seniors who have an accredited track record in their chosen specialization, especially when the comment is not only unwarranted but also irrelevant. For example, why and how would knowing about a particular university holding a seminar, which it calls 'international' (whether it was actually that or not - depending on the numbers and quality of international delegates), enhance or upgrade one's knowledge 'level'?
Notwithstanding the above, I always welcome any new information or 'knowledge' that is relevant, correct, and useful.
Research Design Considerations
With reference to the instant subject matter, the research design itself SHOULD include the type of data required, sources of data collection, etc., and these should be spelled out at the beginning of the research design itself rather than trying to 'retro-fit' them based on the researcher's convenience or limitations.
Warm regards to all; I am especially thankful to boss2966 and vkokamthanker for their valuable inputs and doing their best to be helpful.