00421nam a2200133Ia 4500008004100000100001700041245008800058245003300146260004000179260000900219300002300228650001400251650002200265170224s9999 xx 000 0 und d aMotoko Akiba aEffects of teacher professional learning activities on student achievement growth  cMotoko Akiba & Guodong Liang bThe Journal of Educational Research c2016 a109: Pages: 99-110 xEducation xSpecial Education