<prompt> Translate the following text to EnglishKwa maelezo zaidi juu ya uzalishaji wa multifactor, angalia BLS Handbook of Methods, Bureau of Labor Statistics Aprili 1997, pp. 89-98, na Edwin R. Dean na Michael J. Harper, The BLS Productivity Measurement Program, Bureau of Labor Statistics Julayi 5, 2000, karatasi iliyotolewa kwa NBER Mkutano wa Utafiti wa Mapato na Utajiri juu ya Uzalishaji Mpya katika Uchambuzi wa Uendeshaji.  <response>: For more information on multifactor productivity, see Productivity Business Sector and Major Subsectors, BLS Handbook of Methods, Bureau of Labor Statistics April 1997, pp. 89-98; and Edwin R. Dean and Michael J. Harper, The BLS Productivity Measurement Program, Bureau of Labor Statistics July 5, 2000, paper presented to the NBER Conference on Research in Income and Wealth on New Directions in Productivity Analysis, March 20-21, 1998. 