Wynn, L., S., Bernstein, T., N.(1981).Guiding young children's learning : a comprehensive approach to early childhood education / Sara Wynn Lundsteen, Norma Bernstein Tarrow .New York:McGraw-Hill book company.
Gaya MLA
Lundsteen, Sara, Wynn., Tarrow, Norma, Bernstein."Guiding young children's learning : a comprehensive approach to early childhood education / Sara Wynn Lundsteen, Norma Bernstein Tarrow".New York:McGraw-Hill book company,1981.Skripsi.