From: Thomas Hockey et al. (eds.). The Biographical Encyclopedia of Astronomers, Springer Reference. New York: Springer, 2007, p. 740
Marwarrūdhī: Khālid ibn ʿAbd al‐Malik al‐Marwarrūdhī
Barani, Syed Hasan (1951). “Muslim Researches in Geodesy.” In Al‐Bīrūnī Commemoration Volume, A. H. 362–A. H. 1362, pp. 1–52. Calcutta: Iran Society. (Includes transcriptions and an analysis of Arabic primary sources, as well as translations.)
Kennedy, E. S. “A Survey of Islamic Astronomical, Tables.” Transactions of the American Philosophical Society, n.s., 46, pt. 2 (1956): 121–177, esp. pp. 127, 136. (Reprint, Philadelphia: American Philosophical Society, 1989.) (An important list, with excellent introduction to the topic of zījes.)
King, D. A. (2000). “Too Many Cooks … A New Account of the Earliest Geodetic Measurements.” Suhayl 1: 207–241. (Provides translated texts related to Marwarrūdhī's involvement with measuring the Earth.)
Langermann, Y. Tzvi (1985). “The Book of Bodies and Distances of Ḥabash al‐Ḥāsib.” Centaurus 28: 108–128. (A recently discovered Arabic manuscript includes contemporary records of astronomical projects initiated by Caliph Maʾmūn. With English translation and discussion.)
Sarton, George (1927). Introduction to the History of Science. Vol. 1, p. 566. Baltimore: Published for the Carnegie Institution of Washington by Williams and Wilkins.
Sayılı, Aydın (1960). The Observatory in Islam. Ankara: Turkish Historical Society. (See Chap. 2, “Al Maműn's Observatory Building Activity,” pp. 50–87, for a valuable discussion, beginning with a thorough analysis of early Islamic astronomical observations.)