Saraswati Yuga

1 Satyuga - Brahma Saraswati Appear at Goloka Rasa - Saraswati Expands to River Form

https://freeglobaluniversity.blogspot.com/search/label/Gol

2 Tretayuga -  Merges with Ganga Yamuna

https://harekrishnainfo.blogspot.com/search/label/GangaYamunaSaraswati

3 Dwaparyuga -  Enters into Flute

https://freeglobaluniversity.blogspot.com/search/label/Flute

4 Kaliyuga - Enters into Vyasa

https://www.google.com/search?q=devi+saraswati+vyasam