ROY SUMITA, V. T. (2012). TEXTBOOK ON FAMILY APPROACH IN EXTENSION PROGRAMME MANAGEMENT. ICAR, NEW DELHI.
Lua i Stíl Chicago (17ú heag.)ROY SUMITA, VERMA TEJ. TEXTBOOK ON FAMILY APPROACH IN EXTENSION PROGRAMME MANAGEMENT. ICAR, NEW DELHI, 2012.
Lua MLA (9ú heag.)ROY SUMITA, VERMA TEJ. TEXTBOOK ON FAMILY APPROACH IN EXTENSION PROGRAMME MANAGEMENT. ICAR, NEW DELHI, 2012.
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