While reading the most beautiful Chapter of "Shreemad Bhagavatam" (Song 10, Chapter 90) I have stumbled upon expression "Paramam Gatim" in the Verse 10.90.25.
This Chapter is all about Prema-Vaichittya of Princesses of
The only Pramana which exists for me is just "Shree Lakshmi-Tantra", the Only Adored Goddess is Shreemati Lakshmi-Devi