- auto.24tv.ua ru/harakteristiki_polskih_tankov_pt_…PT-91 Twardy.
- vikna.tv ru/video/polsha-peredala-ukraine-tanki-…
- worldoftanks.eu en/community/accounts/500993263-…Detailed statistics of player pt91twardy in World of Tanks: battles fought, victory rate, player achievements.
- sapientiatr.com PT-91_TwardyPT-91 Twardy Polonya yapımı ana muharabe tankıdır. T-72M/M1 tankının geliştirilmesiyle ortaya çıkmıştır. T-72'nin geliştirilmiş varyantıdır.
- army-guide.com eng/product179.htmlOn PT-91 "Twardy" chassis there was planed to produce recovery vehicle WZT-3, armed engineering vehicle and drivers training vehicle.
- pngwing.com tr/search?q=pt91 Twardy958x1355px 94.3KB. Polonya PZL P.11 Uçak PT-91 Twardy Polonya Kara Kuvvetleri, uçak, avcı uçağı, uçak, ordu png. 1200x1683px 740.7KB.
- super-hobby.com products/PT-91-TWARDY.htmlGPM 0310 PT-91 TWARDY. ... The only foreign user of the PT-91 vehicles is Malaysia, which has purchased about 50 tanks of this type in the PT-91M version.
- dir.md en.wikipedia.org/wiki/PT-91PT-91 Twardy. Production variant for the Polish Army, an extensively modernized development of the T-72M1.
- argun-kazakhstan.com tpost/iark2ajua1-what-is-…The main feature of the PT-91 tank is the Twardy protection using active armor of ERAWA's own design, which has 394 blocks.