1 online resource (3 volumes: q.01: 61 pages ; q.02-03: 86 pages ; q.04-05: 71 pages)
Condition: q.01: Bình thường/ Fair ; q.02-03: Tốt/ Good ; q.04-05: Kém/ Poor
National Library of Vietnam/ Thư viện Quốc gia Việt Nam