پذیرش بتن
| Materyal türü | Basma eser |
| Dil | Farsça |
| Kurum | Internet Archive |
| Kaynak | Internet Archive |
| Not | Concrete acceptance regulations |
پذیرش بتن, Internet Archive, https://archive.org/details/20250303_20250303_1552.
| Materyal türü | Basma eser |
| Dil | Farsça |
| Kurum | Internet Archive |
| Kaynak | Internet Archive |
| Not | Concrete acceptance regulations |
پذیرش بتن, Internet Archive, https://archive.org/details/20250303_20250303_1552.