อ้างอิง ของ พืชกรรมสวน

  1. ↑ von Hagen, V.W. (1957) The Ancient Sun Kingdoms Of The Americas. Ohio: The World Publishing Company
  2. ↑ McGee, J.R. and Kruse, M. (1986) Swidden horticulture among the Lacandon Maya [videorecording (29 mins.)]. University of California, Berkeley: Extension Media Center
  3. ↑ Thompson, S.I. (1977) Women, Horticulture, and Society in Tropical America. American Anthropologist, N.S., 79: 908-910