DJVU PDF Jacob, J.M. 1993, "Some problems arising from the orthography of consonants on the Khmer inscriptions", in Cambodian Linguistics, Literature and History, ed. D.A. Smyth, pp. 103-127. School of Oriental and African Studies, University of London. cite.

DJVU PDF Jacob, J.M. 1993, "The ecology of Angkor: evidence from the Khmer inscriptions", in Cambodian Linguistics, Literature and History, ed. D.A. Smyth, pp. 280-298. School of Oriental and African Studies, University of London. cite.

DJVU PDF Jacob, J.M. 1993, "Pre-Angkor Cambodia: evidence from the inscriptions in Khmer concerning the common people and their environment ", in Cambodian Linguistics, Literature and History, ed. D.A. Smyth, pp. 299-318. School of Oriental and African Studies, University of London. cite.