AdlerM. (1982). Why only Adults can be Educable. In GrossR. (ed.): Invitation to Lifelong Learning.Chicago, Ill: Follett.
2.
AslanianC., and BrickellH. (1982). “Passages’ to Adulthood & Triggers to Learning. In GrossR. (ed.): Invitation to Lifelong Learning.Chicago, Ill: Follett.
3.
BotwinickJ. (1979). Aging and behaviour. (2nd ed.). New York: Singer Publishing Company.
4.
BromleyD.B. (1966). The Psychology of Human Aging.London: Pelican.
5.
BurleyJ. (1979). A Feasibility Study of Structured Instruction in Instrumental Music for the Adult Beginnet. Doctoral Dissertation, Univ. of Illinois, Urbana, Chamaign.
6.
CsikszentmihalyiM. (1982). Learning, ‘Flow’ and Happiness. In GrossR. (ed.): Invitation to Lifelong Learning.Chicago, Ill: Follett.
7.
HeinstockR. (1978). The Greying of the Campus.Educational Facilities Laboratory.
8.
KimmellD.C. (1974). Adulthood and Aging.New York: John Wiley & Sons.
9.
KnowlesM. (1980). The Modern Practice of Adult Education: From Pedagogy to Andragogy.Chicago: Associated Press.
10.
KnowlesM. (1984). The Adult Learner: A Neglected Species.Houston, Texas: Gulf Publ.
11.
MerriamS. (1978). Middle Age: A Review of the Literature and its Implications for Educational Intervention. Adult Education, 29, 39–54.
12.
RaghebM. G., and GriffithC. A. (1982). The Contribution of Leisure Participation and Leisure Satisfaction to Life Satisfaction of Older Persons. J. of Leisure Research, 14, (4), 295–306.
13.
RayR.O. (1979). Life Satisfaction and Activity Involvement: Implications for Leisure Service. J. of Leisure Research, 11, (2), 112–118.
14.
UNESCO (1976). Recommendation on the Development of Adult Education.Paris: United Nations Educational, Scientific & Cultural Organisation, Adult Education Section.
15.
VerdunJ. R., and McEwenD. N. (1984). Adults and their Leisure. The Need for Lifelong Learning.Springfield, Ill: Charles Thomas.
16.
ZuckerkandlV. (1973). Man the Musician.Princeton: University Press.