Journal library holdings

The Journal name Challenge is found in the following Libraries:
Library
   Pastic National Science Reference Library (Islamabad)
1963VOL. 4 ISSUE- 2 VOL. 4 ISSUE- 3
1964VOL. 5 ISSUE- 1
1966VOL. 7 ISSUE- 5
1971VOL. 12 ISSUE- 2 VOL. 12 ISSUE- 3 VOL. 12 ISSUE- 4
1973VOL. 15 ISSUE- 1
1974VOL. 15 ISSUE- 2 VOL. 15 ISSUE- 3 VOL. 15 ISSUE- 4
1975VOL. 16 ISSUE- 1
1978VOL. 19 ISSUE- 1 VOL. 19 ISSUE- 2 VOL. 19 ISSUE- 3 VOL. 19 ISSUE- 4
1979VOL. 20 ISSUE- 1 VOL. 20 ISSUE- 2 VOL. 20 ISSUE- 3 VOL. 20 ISSUE- 4
1980VOL. 21 ISSUE- 1 VOL. 21 ISSUE- 2 VOL. 21 ISSUE- 3 VOL. 21 ISSUE- 4
1981VOL. 22 ISSUE- 1 VOL. 22 ISSUE- 2 VOL. 22 ISSUE- 3 VOL. 22 ISSUE- 4
1982VOL. 23 ISSUE- 1 VOL. 23 ISSUE- 2 VOL. 23 ISSUE- 3 VOL. 23 ISSUE- 4
1983VOL. 24 ISSUE- 1 VOL. 24 ISSUE- 2 VOL. 24 ISSUE- 3 VOL. 24 ISSUE- 4
1984VOL. 25 ISSUE- 1 VOL. 25 ISSUE- 2 VOL. 25 ISSUE- 3 VOL. 25 ISSUE- 4
1985VOL. 26 ISSUE- 1 VOL. 26 ISSUE- 2 VOL. 26 ISSUE- 3 VOL. 26 ISSUE- 4
1986VOL. 27 ISSUE- 1 VOL. 27 ISSUE- 2 VOL. 27 ISSUE- 3 VOL. 27 ISSUE- 4
1987VOL. 28 ISSUE- 1 VOL. 28 ISSUE- 2 VOL. 28 ISSUE- 3 VOL. 28 ISSUE- 4
1988VOL. 29 ISSUE- 1 VOL. 29 ISSUE- 2 VOL. 29 ISSUE- 3 VOL. 29 ISSUE- 4
1989VOL. 30 ISSUE- 1 VOL. 30 ISSUE- 2 VOL. 30 ISSUE- 3 VOL. 30 ISSUE- 4
1990VOL. 31 ISSUE- 1 VOL. 31 ISSUE- 2 VOL. 31 ISSUE- 3 VOL. 31 ISSUE- 4
1991VOL. 32 ISSUE- 1 VOL. 32 ISSUE- 2 VOL. 32 ISSUE- 3
1992VOL. 33 ISSUE- 1 VOL. 33 ISSUE- 3 VOL. 33 ISSUE- 4
1993VOL. 34 ISSUE- 2 VOL. 34 ISSUE- 4
1994VOL. 35 ISSUE- 1 VOL. 35 ISSUE- 2 VOL. 35 ISSUE- 3 VOL. 35 ISSUE- 4
1995VOL. 36 ISSUE- 1 VOL. 36 ISSUE- 2 VOL. 36 ISSUE- 3 VOL. 36 ISSUE- 4
   Quaid-e-Azam University (Islamabad)
1980VOL. 23 ISSUE- 4 VOL. 23 ISSUE- 6
1981VOL. 24 ISSUE- 1 VOL. 24 ISSUE- 2 VOL. 24 ISSUE- 3 VOL. 24 ISSUE- 4 VOL. 24 ISSUE- 5 VOL. 24 ISSUE- 6
1982VOL. 25 ISSUE- 1 VOL. 25 ISSUE- 2 VOL. 25 ISSUE- 4 VOL. 25 ISSUE- 5
   Health Science Library, Agha Khan University (Karachi)
1983VOL. 24 ISSUE- 1 VOL. 24 ISSUE- 2 VOL. 24 ISSUE- 3 VOL. 24 ISSUE- 4
1984VOL. 25 ISSUE- 1 VOL. 25 ISSUE- 2 VOL. 25 ISSUE- 3 VOL. 25 ISSUE- 4
1985VOL. 26 ISSUE- 1 VOL. 26 ISSUE- 2 VOL. 26 ISSUE- 3 VOL. 26 ISSUE- 4
1986VOL. 27 ISSUE- 1 VOL. 27 ISSUE- 2 VOL. 27 ISSUE- 3 VOL. 27 ISSUE- 4
1987VOL. 28 ISSUE- 1 VOL. 28 ISSUE- 2 VOL. 28 ISSUE- 3 VOL. 28 ISSUE- 4
1988VOL. 29 ISSUE- 1 VOL. 29 ISSUE- 2 VOL. 29 ISSUE- 3 VOL. 29 ISSUE- 4
1989VOL. 30 ISSUE- 1 VOL. 30 ISSUE- 2 VOL. 30 ISSUE- 3 VOL. 30 ISSUE- 4
1990VOL. 31 ISSUE- 1 VOL. 31 ISSUE- 2 VOL. 31 ISSUE- 3 VOL. 31 ISSUE- 4
1991VOL. 32 ISSUE- 1 VOL. 32 ISSUE- 2 VOL. 32 ISSUE- 3 VOL. 32 ISSUE- 4
1992VOL. 33 ISSUE- 1 VOL. 33 ISSUE- 2 VOL. 33 ISSUE- 3 VOL. 33 ISSUE- 4
1993VOL. 34 ISSUE- 1 VOL. 34 ISSUE- 2 VOL. 34 ISSUE- 4
1994VOL. 35 ISSUE- 1 VOL. 35 ISSUE- 2 VOL. 35 ISSUE- 3 VOL. 35 ISSUE- 4
1995VOL. 36 ISSUE- 1 VOL. 36 ISSUE- 2 VOL. 36 ISSUE- 3 VOL. 36 ISSUE- 4
1996VOL. 37 ISSUE- 1 VOL. 37 ISSUE- 2