Author: Eric A. Anderson, George F. Earle, State University College of Forestry at Syracuse University, Syracuse University. School of Art, New York State Science and Technology Foundation
Author: Victor V. Bobetsky associate professor and Director of the Teacher Education Program in Music at Hunter College of the City University of New York
Author: V. E. Tselin, E. A. Blinova ; The Russian ministry of education and science, Federal state autonomous educational institution of higher education "Samara national research university named after academician S. P. Korolev" (Samara university)