Write SQL query to solve given problem: How many employed disabled students have zero absences?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.name) FROM longest_absense_from_school AS T1 INNER JOIN disabled AS T2 ON T1.name = T2.name INNER JOIN unemployed AS T3 ON T3.name = T2.name WHERE T1.month = 0