Sources &
further reading.

Authoritative

1. Vatican — Pope Pius XII, Haurietis Aquas (15 May 1956) — vatican.va
2. New Advent — Catholic Encyclopedia (1910), "St. Margaret Mary Alacoque" — newadvent.org
3. EWTN — "St. Margaret Mary Alacoque" (Catholic Encyclopedia reprint) — ewtn.com
4. Encyclopaedia Britannica — "St. Claude La Colombière" — britannica.com
5. Catholic Heritage, Catholic Diocese of Hong Kong — "St. Margaret Mary's Church: Introduction" — heritage.catholic.org.hk
6. Catholic Heritage, Catholic Diocese of Hong Kong — "St. Margaret Mary's Church: Architectural Style" — heritage.catholic.org.hk
7. Hong Kong Antiquities and Monuments Office / Antiquities Advisory Board — Historic Building Appraisal No. 110, St. Margaret's Church — aab.gov.hk
8. Kung Kao Po 公教報 — 【區區有聖堂】聖瑪加利大堂（下）東方首個聖女命名的聖堂 (9 September 2022) — kkp.org.hk
9. Catholic Diocese of Hong Kong Archives — Rev. Pietro De Maria MEM — archives.catholic.org.hk
10. Catholic Diocese of Hong Kong Archives — Bishop Enrico Valtorta PIME — archives.catholic.org.hk
11. St. Margaret's Church parish site — Pastors page, archived 31 May 2023 — web.archive.org
12. St. Margaret's Church parish site — Official Main Page, archived 2023 — web.archive.org
13. Sanctuary of Paray-le-Monial — official site — sacrecoeur-paray.org

Cross-check

14. Wikipedia — "Margaret Mary Alacoque" — wikipedia.org
15. Wikipedia — "Haurietis aquas" — wikipedia.org
16. Wikipedia — "St. Margaret's Church, Hong Kong" — wikipedia.org
17. Wikipedia — "Pontifical Institute for Foreign Missions" — wikipedia.org
18. Wikipedia — "Sacré-Cœur, Paris" — wikipedia.org
19. HK Mass Schedules — "St. Margaret Mary's Church" — hongkong.mass-schedules.com
20. Ta Kung Pao 大公報 — 2011 article on St. Margaret's Church, archived — web.archive.org

Devotional references

21. The Divine Mercy / Marian Fathers — "The Twelve Promises — and the Great Promise — of the Sacred Heart" — thedivinemercy.org
22. SSPX, District of the USA — "Promises of the Sacred Heart" — sspx.org