Wibowo, S. B. Seventh Geoinformation Science Symposium 2021. SPIE Digital Library.
Chicago-čujuhus (17. p.)Wibowo, Sandy Budi. Seventh Geoinformation Science Symposium 2021. SPIE Digital Library.
MLA-čujuhus (9. p.)Wibowo, Sandy Budi. Seventh Geoinformation Science Symposium 2021. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.