6 1 20 Brian Brown Primary Author Andrew Melrose Primary Author mixed material 9799566436 Betlehem Publisher 2001 tingkat pemula Brown Primary Author mixed material 9794215368 Jakarta RajaGrafindo Persada 2002 laporan Worldwatch Institute Lester R. Brown Editor Budi Kusworo Translator mixed material 9794611255 Jakarta Yayasan Obor Indonesia 1993 Rupert Brown Illustrator mixed material 0356046192 London Macdonald and Company 1974 Mark R. Brown Primary Author Simeon M. Greene Additional Author Galen Grimes Additional Author Arman Yusuf Translator mixed material 9792002979 Jakarta PT Exel Media Komputindo 1998 Brown Watson Primary Author Indira Soetrisno Editor Slamet Translator mixed material 9793358130 Jakarta Ladangpustaka & Intimedia 2002