<prompt> Translate the following text to EnglishKama Mchakato na Sera, iliyoandikwa na Profesa David A. Martin na kuchapishwa kwa mara ya kwanza mnamo 1985, ilisaidia kufafanua sheria ya uhamiaji kama uwanja halali wa masomo ya kitaaluma.  <response>: These include Process and Policy, co-authored with Professor David A. Martin and first published in 1985, which helped to define immigration law as a legitimate field of academic study. 