MMG.Majmú`iy-i Munájáthá. Bahá'í-Verlag, 1992 (1st ed.), 2001 (2nd ed.), 2009 (3rd ed.). Standard book of prayers of ‘Abdu’l-Bahá. Reprinted with additional prayers and reordered, 2009. Numbering and pagination in this catalog refers to the 1992 (MMG1), 2001 (MMG2) or 2009 (MMG3) edition; page images link to the 2001 edition at https://reference.bahai.org/fa/t/ab/MMA
YARP.Yárán-i Pársí. Bahá'í-Verlag, 1998. Tablets to Bahá’ís of Zoroastrian background. YARP1 and YARP2 refer to the Bahá’u’lláh and Abdu’l-Bahá sections, respectively. https://reference.bahai.org/fa/t/c/YP/