You should create a service request on the support website to get the media, or a temporary download path. That said, it won't be free, so not sure if that's what you want for your practice, but there's no other way.
Why do you want to practice on previous release anyway ?
Requesting Physical Shipment or Download URL for Software Media (Doc ID 1071023.1)
Within this document are directions on how to request a download URL when you have trouble accessing the software from the Oracle Software Delivery Cloud website or the product version is older and unavailable for download.
I have the same problem to download that version of PeopleTools.
I need it for a Windows Server 2008 R2 64x Standar machine. The oldest machine breakout and we lost this software:
PeopleTools 8.52 and HRMS 8.9
Peopletools Product Patch 8.52.08
Thank you so much.