Kippley JF, Kippley SK. The Art of Natural Family Planning. 4th ed. The Couple to Couple League 1966.
Umadevi M, Sampath KPK, Bhowmik D, Duraivel S. Medicinal plants with potential antifertility activity. J Med Plants Stud 2013; 1(1): 26-33.
Pathak AK, Mallurwar VR, Kondalkar A, Soni S. A review of plants with anti-fertility activity. Niger J Nat Prod Med 2005; 9: 4-10.
Dutta S. A review of plants used as contraceptives. Int J Innov Pharm Sci Res 2015; 3: 655-62.
Kaur R, Sharma A, Kumar R, Kharb R. Rising trends towards herbal contraceptives. J Nat Prod Plant Resour 2011; 1(4): 5-12.
Kahlenborn MDC. Breast Cancer. Its Link to Abortion and the Birth Control Pill, One More Soul 2000.
Grimes DA. Intrauterine devices (IUDs).In RA Hatcher et al., eds.,. Contraceptive Technology. 19th ed. New York: Ardent 2007.
Al-Inany H. Current state of intrauterine contraceptive devices. Middle East Fertil Soc J 2007; 12(1): 8-12.
Rajeswari J, Rani S. Medicinal plants used as abortifacients-A review. Int J Pharm Sci Rev Res 2014; 24(1): 129-33.
Bala K, Arya M, Katare DP. Herbal contraceptive: an overview. World J Pharm Pharm Sci 2014; 3(8): 1305-26.
Kumar CP, Jadhav S. Pharmacological action of plant alkaloids in female reproductive system of test animals and/or human beings: A review. Int J Pharm Sci Rev Res 2013; 23(2): 98-107.
Mamatha A, Elumalai A, Eswaraiah MC, Mathangi N. An updated review on antifertility plants-2012. Int J Pharmacother 2012; 2: 4-6.
Shrivastava S, Dwivedi S, Dubey D, Kapoor S. Traditional herbal remedies from Madhya Pradesh used as oral contraceptives- A field survey. Int J Green Pharm 2007; 1(1): 18-22.
Priya G, Saravanan K, Renuka C. Medicinal plants with potential anti-fertility activity-A review of sixteen years of herbal medicine research (1994-2010). Int J Pharm Tech Res 2012; 4(1): 481-94.
Bablola KA. An examination of the usage of herbal contraceptives and abortifacients in Lagos State, Nigeria. Ethnobot Leaflets 2009; 13: 140-6.
Pokharkar RD, Saraswat RK, Kotkar S. Survey of plants having antifertility activity from Western Ghat area of Maharashtra state. J Herbal Med Toxicol 2010; 4(2): 71-5.
Pradhan DK, Mishra MR, Mishra A, et al. A comprehensive review of plants used as contraceptives. Int J Pharm Sci Res 2012; 4(1): 148-55.
Jegede T, Fagbenro O. Histology of Gonads in Tilapia zillii (Gervais) Fed Neem (Azadirachta indica) Leaf Meal Diets. 8th International Symposium on Tilapia in Aquaculture. Cairo, Egypt. 2008; pp. 1129-34.
Changamma C, Lakshman J. Antispermatogenic effect of Carica papaya seed extract on steroidogenesis in albino rats. Int J Pharm Pharm Sci 2013; 5(1): 67-9.
Mutreja A, Agarwal M, Kushwaha S, Chauhan A. Effect of Nelumbo nucifera seeds on the reproductive organs of female rats. IJRM 2008; 6(1): 7-11.
Pandey G, Madhuri S. Pharmacological activities of Ocimum sanctum (Tulsi): A review. Int J Pharm Sci Rev Res 2010; 5(1): 61-6.
Lakshmi PJ. Therapeutic uses of Vernonia cinerea- A short review. IJPCR 2015; 7(4): 323-5.
Singh AR, Singh K, Shekhawat PS. Spermicidal activity and antifertility activity of ethanolic extract of Withania somnifera in male albino rats. Int J Pharm Sci Rev Res 2013; 21(2): 227-32.