6 1 20 Francis Weston Sears Primary Author mixed material 1991 Fisika+Untuk+Universitas+3+Optika.+Fisika+Modern.jpg Francis Weston Sears Primary Author mixed material Bandung Bina Cipta 1994 Fisika+Untuk+Universitas+2+Listrik%2C+Magnet.jpg Francis Weston Sears Primary Author Mark W. Zemansky Primary Author mixed material United States of America ADDISON-WESLEY PUBLISHING COMPANY 1955 Francis Weston Sears Primary Author mixed material 1950 Mechanics+Heat+and+Sound.jpg Francis Weston Sears Primary Author mixed material America franicis weston sears 1958 MEACHANICS%2CWAVE_MOTION%2CAND_HEAT.jpg.jpg Francis Weston Sears Primary Author mixed material 1958 Electricity+and+Magnetism.jpg