Рет қаралды 19,397
z score sri lanka,z score sinhala,z score commerce,z score art subject,z score explained,z score wedi subject,z score a/l,z score commerce subjects,a/ l z score calculate,z score,z score calculation,z score statistics,a/l z score,a/l z score formula,a/l z score 2021,how to calculate z score in a/l, sri lanka,sl accounting kalum waduge