niyamena

niyamena by religious observances; SB 3.24.3
niyamena with regulation; SB 3.29.17
niyamena by the laws of nature; SB 5.10.11
niyamena by regularly chanting the holy name of the Lord; SB 6.1.13-14
kalā-niyamena by the order of plenary portions; CC Adi 5.155
kalā-niyamena by the order of plenary portions; Bs 5.39