M. Balagopalan. “SOIL CHARACTERISTICS IN NATURAL FORESTS AND <em>TECTONA</em> <em>GRANDIS</em> AND <em>ANACARDIUM</em> <em>OCCIDENTALE</Em> PLANTATIONS IN KERALA, INDIA”. Journal of Tropical Forest Science (JTFS), vol. 7, no. 4, June 1995, pp. 635-44, https://jtfs.frim.gov.my/jtfs/article/view/1858.