Śrī Laṅkāvē samāja ārthika samīkṣaṇaya = Socioeconomic survey of Sri Lanka, 1969/70 : Srī Laṅkāvē āhāra saha pōṣana maṭṭama piḷibanda viśēṣa vārtāva, Oktōbar, 1972 = Special report on food and nutritional levels in Sri Lanka, October, 1972 (Dept. of Census and Statistics, 1977)