| APA | HAYA. (2012, February 14). In Acronym Geek. Retrieved 23:46, February 14, 2012, from http://www.acronymgeek.com/HAYA |
| MLA | "HAYA." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HAYA>. |
| MHRA | 'HAYA', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HAYA> [accessed 14 February 2012] |
| Chicago | "HAYA", http://www.acronymgeek.com/HAYA (accessed February 14, 2012). |
| CBE/CSE | HAYA [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HAYA. |
| Bluebook | HAYA, http://www.acronymgeek.com/HAYA (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HAYA, http://www.acronymgeek.com/HAYA (optional description here) (as of Feb. 14, 2012, 23:46). |
| AMA | HAYA. Acronym Geek. February 14, 2012, 23:46. Available at: http://www.acronymgeek.com/HAYA. Accessed February 14, 2012, 23:46. |