කර්යක්ෂමතා සංවර්ධනය සඳහා ගුරු සේවය ඇගයීම

By: Publication details: Unesco, 1985Description: 64p.; 20cmTitle translated: karyakshamatha Sanwardanaya Sadaha Guru Sewaya AgayeemaSubject(s): DDC classification:
  • SAM 371.102
Item type: Lending Materials
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