Phạm Bá Ngoãn, pen name Thanh Hải (1930–1980) was a modern Vietnamese poet. His pen name "Thanh Hải" literally means "Blue Sea" in classical Sino-Vietnamese.
Phạm Bá Ngoãn, pen name Thanh Hải (1930–1980) was a modern Vietnamese poet. His pen name "Thanh Hải" literally means "Blue Sea" in classical Sino-Vietnamese. (en)
Phạm Bá Ngoãn, pen name Thanh Hải (1930–1980) was a modern Vietnamese poet. His pen name "Thanh Hải" literally means "Blue Sea" in classical Sino-Vietnamese. (en)