Bibliografi : hlm. 217-218
Bibliografi : hlm. 325-331
Bibliografi : hlm. 181
Bibliografi : hlm. 281-282
Bibliografi : hlm. 160 - 163
Bibliografi : hlm. 143-144 No Inv.: 147012, 147013/P/Perp/15/2c
Judul asli : "Introduction to the Study of Soils in Tropical and Subtropical Regions"
Bibliografi : hlm. 103-107
No Inv.: 112753/P/Perp/08/1c