3 1 20 Ina Hasanah Primary Author Titin Nugraha Primary Author mixed material 9786028363235 Jakarta Grasindo 2010 Seri_ilmu_pengetahuan_bumi.jpeg Energi dan Permasalahannya Delik Iskandar Primary Author Ina Hasanah Primary Author mixed material 9789797560119 Surabaya Graha Ilmu Mulia 2010 Mengenal_bumi_3.jpeg Delik Iskandar Primary Author Ina Hasanah Primary Author mixed material 9789792416169 Bandung Indahjaya Adipratama 2009 Sepak_bola.jpeg