It is okay to have one lump sum amount deposited in your account however you have to also document where this money came from so in your mother's case you need to add 6 months bank statements from the same account she used to transfer $5,000 to you (showing it was ordinary income) and in your father's case you will also have to provide 6 months bank statements from the same account he got the loan from and then add the loan documents showing where $26,400 came from.
It is okay to use a loan to pay for your school whether it was a study loan in your home country or in Canada, or that it was someone else who took the loan to support you. A letter of explanation would make things easier for the case officer and you should include affidavit letters of financial support from your parents.