[Ali Bassa, Medan, Sumatra, until 1977]; Fred and Rita Richman, New York, 1977–1988
Sanday, Peggy R., and Suwati Kartiwa. "Adat and Weaving in West Sumatra: The Codification of Minangkabau Worldview." Expedition vol. 26, no. 4 (August 1984), http://www.penn.museum/sites/expedition/cloth-and-custom-in-west-sumatra/.
Capistrano-Baker, Florina H. Art of Island Southeast Asia: The Fred and Rita Richman Collection in The Metropolitan Museum of Art. New York: The Metropolitan Museum of Art, 1994, 35, pp. 72-73.
Kjellgren, Eric. Oceania: Art of the Pacific Islands in the Metropolitan Museum of Art. New York and New Haven: The Metropolitan Museum of Art, 2007, 126, 214-5.