books.google.com.my/books?id=OJFrFmpGSnUC&pg=PA12&lpg=PA12&dq=qualitative+research,+field+memo&source=bl&ots=Uf6wNKIV0v&sig=G9ZuAwBwH659a8jqTZx3FrG8K70&hl=en&sa=X&ei=Hq4gUryEI4KatQb0kYGIAQ&redir_esc=y#v=onepage&q=qualitative%20research%2C%20field%20memo&f=false