“ Pg.29 : Niyoga forbidden in the Kali age by Brhaspati and other smrti writers. “ केन, पांडुरंग केन (1941). History Of Dharmasastra Vol. 2, Part. 1 (अंग्रेज़ी भाषा में). p. 29.
“ Pg.150 : A wife or a widow must not, however, be forced to have recourse to Niyoga for inheritance or similar purposes. Baudhāyana and Vasistha say that a widow desiring Niyoga should avoid meat, honey etc. and sleep on the ground for a short period not exceeding one year. After six months of the death of her husband, she offers a funeral oblation to her husband and with the approval and aid of her brother or father, and relatives of her husband, and also in consultation with the Gurus of her family, she chooses the man to have an issue by her. A characterless, mad, diseased or very aged widow is not entitled to Niyoga. Sixteen years after maturity is the proper time for Niyoga. A sickly person is to be avoided for the purpose. She must be economically independent of the person whom she appoints for Niyoga and provide for the necessary ex-penses for food, unguents, etc. herself i.e. from the estate of her husband.”Jatindra Bimal Chaudhuri (1945). Women In Vedic Ritual. p. 150.
बेंजामिन वाल्कर (2019). Hindu World: An Encyclopedic Survey of Hinduism [हिन्दू दुनिया: हिन्दू धर्म का एक विश्वकोशीय सर्वेक्षण]. Vol. 1. टेलर & फ़्रांसीस. p. 592. ISBN978-0-429-62465-0. The levirate system of the ancient Jews was almost identical with the Hindu custom of niyoga, 'injunction', legalized by Manu
