- “Yuga”. 《Dictionary.com》. 랜덤하우스."Yuga". Dictionary.com Unabridged (Online). n.d. Retrieved 2021-02-27.
- Sundarraj, M. (1997) [1st ed. 1994]. 〈Ch. 4 Asvins—Time-Keepers〉. Mahalingam, N. 《RG Vedic Studies》. Coimbatore: Rukmani Offset Press. 219쪽.
It is quite clear that the smallest unit was the 'nimisah' ['winking of eyes'], and that time in the general sense of past, present and future was indicated by the word 'yuga'.
- “Kalivarjya (actions forbidden in the Kali Age)”. 《Journal of the Bombay Branch of the Royal Asiatic Society》 (The Asiatic Society of Bombay) 12: 1–2. September 1936.
The word yuga occurs at least thirty-eight times in the Rigveda, but the meaning is rather doubtful. In a few places yuga means yoke ... In many places it appears to refer to a very brief period ... Generally yuga appears to mean in the Rigveda 'generation' (lessening the life of human generations) ... In other places 'yuga' must be given the sense of a 'long period of time' ...
- . Brill Publishers.
|제목=이(가) 없거나 비었음 (도움말)
- Burgess, Rev. Ebenezer (1935) [1st ed. 1860]. Gangooly, Phanindralal, 편집. 《Translation of the Surya-Siddhanta, A Text-Book of Hindu Astronomy; With notes and an appendix》. University of Calcutta. 9쪽.
The period of 4,320,000 years is ordinarily styled Great Age (mahayuga), or, as above in two instances [1.15-16], Quadruple Age (caturyuga). In the Surya-Siddhanta, however, the former term is not once found, and the latter occurs only in these verses; elsewhere, Age (yuga) alone is employed to denote it, and always denotes it, unless expressly limited by the name of the Golden (krta) Age.
- “Śrīmad-Bhāgavatam (Bhāgavata Purāṇa) 12.4.2”. 《Bhaktivedanta Vedabase》. 2020년 5월 10일에 확인함.
catur-yuga-sahasraṁ tu brahmaṇo dinam ucyate ।
sa kalpo yatra manavaś caturdaśa viśām-pate ॥ 2 ॥
(2) One thousand cycles of four ages [catur-yuga] constitute a single day of Brahmā, known as a kalpa. In that period, O King, fourteen Manus come and go.
- “Bhagavad-gītā As It Is”, 《Bhaktivedanta Vedabase》 (Bhaktivedanta Book Trust), 1968, LCCN 68008322, 2020년 5월 10일에 확인함,
, 위키데이터 Q854700
sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ ।
rātriṁ yuga-sahasrāntāṁ te ’ho-rātra-vido janāḥ ॥ 17 ॥
(17) By human calculation, a thousand ages [yuga] taken together form the duration of Brahmā’s one day. And such also is the duration of his night.