Kitáb-i-Aqdas (Most Holy Book): Questions and Concordances. Habib Riazati. (2000) Study questions, categorized cross-references to the Aqdas and its notes and "Questions and Answers," topical concordances, and other research materials. Study.
Kitab-i-Aqdas Questions and Concordances. Habib Riazati. (2002) The Tablets of Bahá'u'lláh and their relationship to selected passages in The Aqdas; New Laws That Abrogate the Laws of Former Dispensations; Correlation of Paragraphs, Notes, and Questions and Answers of the Aqdas; sample questions. Study.