Tham khảo Kelpie

    Tài liệu tham khảo

    WikiPedia: Kelpie http://www.tandfonline.com/doi/abs/10.1080/.U4If9y... //doi.org/10.1080%2F.U4If9y-7k7A https://books.google.com/books?id=1-ORpjD6XEcC https://books.google.com/books?id=2qhZAAAAMAAJ https://books.google.com/books?id=DKswAAAAYAAJ&pg=... https://books.google.com/books?id=UViEbWQOSd0C&pg=... https://books.google.com/books?id=bFFJAAAAMAAJ&pg=... https://books.google.com/books?id=cvjWAAAAMAAJ https://books.google.com/books?id=nd9R6GQBB_0C https://books.google.com/books?id=pSo9QdyqPi4C&pg=...