1. Brandis, D. (1906). Indian Trees. Constable and Co. London.
2. Chaturvedi, M.D. (1955). Neem (Azadirachta indica)-Hardy, thrifty and persistent. Ind. Farming, Dec. 1955. (ICAR).
3. Devakumar, C. and Sukhdev (1996). Chemistry. In: Neem (eds. Randhava, N.S. and Parmar, B.S.). New Age International Pvt. Limited, Publishers, New Delhi. pp.77-110.
4. Hocking, D. (1993). Tree for Drylands. Oxford & IBH Publishing Co., New Delhi-Bombay-Calcutta, 370 p.
5. Tewari, J.C., Harsh, L.N., Sharma, N.K., Bohra, M.D. and Tripathi, D. (2001). Variation and interrelations among tree characters, pod-seed morphology and pod biochemical characters in Prosopis juliflora (SW) DC. Forests, Trees and Livelihoods, 11: 113-126. https://doi.org/10.1080/14728028.2001.9752380
6. Jindal, S.K., Singh, M., Solanki, K.R. and Kackar, N.L. (1992). Changes in genetic parameters and ranks of tree height over six growth years in Tecomella undulata. Silva Genet., 41: 213-216.
7. Jusseu, A.D. (1830). Memorie surle Grupe des Meliacees. Memoirs Musse Historie Naturelle. Paris, 19: 153-304.
8. Kadir, A.A., Ariffin, M., Shaari, K. and Heng, C.K. (1998). The distribution and Azadirachtin content of Malaysian Neem trees. Journal of Tropical Forest Products. 4(1): 17-23.
9. Kaushish, S. (2005). Assessing Variability of seed, Seedling and Sapling on Some Marphological and Chemical Traits of superior germplasm of A. indica in hot arid environment Ph.D. Thesis. Forest Research Institute, (ICFRE), Dehra Dun p. 184.
10. Mohan Ram, H.Y. and Nair, M.N.B. (1996). Botany. In: Neem (eds. Randhawa, N.S. and Parmar, B.S.) New Age International Pvt. Limited, Publishers, New Delhi. pp. 6-26.
11. Pandy, V.N. (1996). Ancient Human Medicine. In : Neem (eds. Randhawa, N.S. and Parmar, B.S.). New Age International Pvt. Limited, Publishers, New Delhi. pp. 247-255.
12. Parker, R.N. (1933). Common Indian Trees and How to Know Them. Manager of Publications, Govt. of India, Delhi.
13. Singh, R.V. (1982). Fodder Trees of India. Oxford and IBH Publishing Co., New Delhi.
14. Suri, R.K. and Mehrotra, A. (1994). Input Required for Neem Growth: Neem (Azadirachta indica A. Juss) A Wonder Tree. Society of Forest and Environmental Managers, Dehra Dun. Pp. 16-17.
15. Swaminathan, M.S. (1969). Recent trends in breeding research in Asia. SABRAO Newsletter, 1:11-28.
16. Thakar, R.S., Singh S.D. and Goswami, A. (1981). Azadirachta indica A. Juss: A review. Curr. Res. Medicinal and Arom. Plants, 3: 135-140.
17. Tripathi, D. (2003). Vegetational composition of Kumbalgarh Wildlife Sanctuary in Rajasthan. Ph.D. thesis. Dept. of Forest, Kumaun University, Nainital. p.409.
18. Vir, S., Tewari, J.C., Kaushish, S., Tripathi, D., Yadav, S.S. and Singh, J. (2000). Improvement of Neem tree for higher seed yield, oil content and pesticidal uses. In: Proc. National Symposium on Prospects and Potentials of Plant Biotechnology in India in the 21st Century. 23rd Annual Meeting of P.T.C.A.(I), 18th–21st October, 2000, JNVU, Jodhpur, pp.151.
19. Warthen, J.D., Stokes, J.B., Jacobson, M. and Kazempel, M.F. (1984). Estimation of azadirachtin content in Neem extract and formulations. J. Liq. Chromatogr, 7: 591-598. https://doi.org/10.1080/01483918408073988