↑S. Agesthialingom, Prakya Sreesaila Subrahmanyam, Dravidian Linguistics- V: (proceedings of the Seminar on Dravidian Linguistics- V), Page 275, 1976 - 582 pages, Google book search link quote: "(6) 'before' (antessive), (7) 'behind, ..."
↑Robert, Stéphane Robert. Language Diversity and Cognitive Representations. 1999: 229. ISBN 978-9027223555.
↑Behrang QasemiZadeh, Saeed Rahimi, Persian in MULTEXT-East Framework , 5th International Conference on NLP, FinTAL 2006 Turku, Finland, August 23-25, 2006 Proceedings