Schlosser, Andrea. "Three Early Mahāyāna Treatises from Gandhāra: Bajaur Kharoṣṭhī Fragments 4, 6 and 11." Seattle: University of Washington Press, 2022.
Schlosser mentions briefly that the Bajaur text she studies (Fragment 4) has a list of 20 kinds of joy (viṃśati prīti), which seem to be paralleled in T1485. Otherwise, this list is hard to find ("Apparently, T1485 is the only parallel to this group of twenty kinds of joy"). She speculates that this may indicate that T1485 had some Central Asian sources, via which the compilers gained knowledge of this rubric.
Schlosser mentions briefly that the Bajaur text she studies (Fragment 4) has a list of 20 kinds of joy (vimsati priti), which seem to be paralleled in T1485. Otherwise, this list is hard to find ("Apparently, T1485 is the only parallel to this group of twenty kinds of joy"). She speculates that this may indicate that T1485 had some Central Asian sources, via which the compilers gained knowledge of this rubric. T1485; 菩薩瓔珞本業經; Pusa yingluo jing 菩薩瓔珞經