Tolong jelaskan mengenai Bulgaria dari BTR-60

BTR-60PAU – BTR-60PA converted into an artillery command vehicle equipped with 4 whip antennas.

BTR-60PB experimentally fitted with the Polish WAT turret from SKOT-2AP. Only a prototype was made.

BTR-60PB-MD (bronyetransport’or moderniziran ) – BTR-60PB modernization fitted with the VAMO DT3900 or Rover TD-200 diesel engine, four MB smoke grenade launchers on the turret (two on each side), "Melopa" night sight, new day sight, new NBC protection system, modern radios. It also has a rear view mirror on the left hand side of the hull and side hatches. Only a prototype was made.

BTR-60PB-MD1 – BTR-60PB-MD variant developed for the Bulgarian army, fitted with the Cummins ISB 25.30 turbocharged diesel engine developing 250 hp (186 kW), additional protection for its headlights and eight smoke grenade launchers on the turret (four on each side). 150 in service.

BTR-60PB-MD3 – Export BTR-60PB-MD variant fitted with the KamAZ diesel engine, different sights, eight smoke grenade launchers in right-hand corner of the front of the hull and six on the turret (three on each side). It is also known under the designation BTR-60PB-MD2. The prototype, shown in 2004, was based on the BTR-60PA.