Sri Chaitanya Mahaprabhu, one of the greatest saints of the sixteenth century, had many disciples, of whom the six Gosvamis of Vrindavana are prominent. Sri Rupa Gosvami is one among the six Gosvamis, and he has written many books about Srimati Radharani and Lord Krsna. One of the most beautiful compilations made by him is Sri Radhakrsna Ganoddesha Deepika, which details every resident of Vrindavana, complete with their characteristics, appearance and clothing, as well as their daily activities, and in Radharani's case (and some of Krsna's sakhas' and sakhis' cases), her favourite pastimes, ragas, flowers, pet animals and so on.
At the onset, Sri Rupa Gosvami says
The celebrated personal associates of the King and Queen of Vrndavana are briefly but truthfully described with great delight in both Vedic literatures and oral tradition. This book will also describe them.
TEXT 4 AND 5
These associates of the Lord are described by the residents of Mathura-mandala, by the various books written by devotees , various Vedic literatures such as the Puranas and Agamas and by the great devotees and saintly persons. For the satisfaction of my dear friends, these associates of the Lord will now be briefly describing in writing, following the previous authorities in the path of ecstatic love of God.
So, which are the Puranas and other Vedic literature he is referring to in the above quoted stanzas?
Furthermore, in the 30th Stanza, he says this:
The friendship of Yasoda is described in the following statement of the Adi Purana : " The wife of Maharaja Nanda was known by two names, Yasoda and Devaki. Partly because they share the same name (Devaki) the wife of Maharaja Nanda and the wife of Maharaja Vasudeva were great friends."
So what is the "Adi Purana" that Sri Rupa Gosvami is referring to? A Google search tells me that it is a substantially well-quoted Purana in Gaudiya literature, but I am not familiar with any Purana with that name.
So, which Purana(s) and other scriptures were used as references for this monumental literature?