string(3) "DDD" NULL string(3) "AAA" string(3) "CCC" string(4) "user" NULL NULL string(3) "CCC" string(4) "user" NULL
| صفحات: | 6 صفحات |
| ناشر: | International Journal for Modern Trends in Science and Technology |
| نویسنده: | Mulukuntla Vidya Sagar1| Nalla Suresh2| Kanjarla Shyam Kumar3 |
| registration_number: | مکانیک 15000 تا 19999 |