Use secondary literature:
: Editions by Panchanan Tarkaratna and Durgacharan Bandyopadhyay are also hosted on the Internet Archive (Bengali) .
Check the resource box below or visit your local university's JStor/Archive access. Remember to handle these sacred texts with respect. Read the Sanskrit, study the translation, but most importantly, understand the bhava (emotion) behind the ritual.
A translation by B.N. Shastri is available on Archive.org .
It is notable for its uncommon and rare discussion of human sacrifice. It states that such a sacrifice must only occur with a prince's consent before a war or in times of extreme danger.