15 1 50 Joanna cole Primary Author Bruce Degen Illustrator mixed material 9780590446839 New York Scholastic Inc. 1999 lksdfjlkfsdjlksfdjlkfsdj3498934.jpg.jpg Ruth Spiro Primary Author Irene Chan Illustrator mixed material 9781580899260 United States America Charlesbridge Publishing (U.S.) 2018 71GvoglYYbL._SL1401_.jpg.jpg Using Energy Maggie Brand Illustrator mixed material 0716660598 World Book International 1991 front_KOL470683.jpg.jpg Energy for Tomorrow The National Geographic Primary Author mixed material The National Geographic 2009 cover_repowering-the-planet-energy-for-tomorrow-20240703081517.jpeg How Things Work 7 World Book Inc Primary Author mixed material World Book. Inc cover_childcraft-how-things-work-7-20240212143519.jpg Discovering Science 8 World Book Inc Primary Author mixed material 0716660075 Upper Saddle River, NJ Gramedia 1993 cover_childcraft-discovering-science-8-20240212093852.jpg mixed material 073361647993 Toronto Council on Foreign Relation 2011 Roy Richards Additional Author mixed material 0750101512 Cambridge, Mass Erlangga for Kids 1992 An_Early_Start_to_energy.jpg.jpg Claudio Vita Finzi Additional Author Phil Jacobs Additional Author mixed material 0671735357 Hoboken, NJ Simon and Schuster Paperback 1991 The_Power_Pop_Up_Book.jpg.jpg christine petersen Additional Author mixed material 0516228080 Canada Childrens Press 2004 A_True_Book_Water_Power.jpg.jpg Neil Morris Additional Author mixed material 9780749677657 Australia Franklin Watts 2006 Biomass_Power.jpg.jpg Saving Energy It Start At Home mixed material USA National Geographic Society 2009 Saving_Energy_It_Start_At_Home.jpg.jpg Caren Trafford Additional Author mixed material Jakarta Erlangga Kids 2008 christine petersen Additional Author mixed material London Children Press 2004 pro dan kontra tentang Sumber daya dan Lingkungan Mate Ravilious Additional Author mixed material Solo Tiga Serangkai 2009