Maintainer: ‘Mustafa CAVUS <mustafacavus@eskisehir.edu.tr>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Mustafa",
                      family = "CAVUS",
                      role = c("aut", "cre"),
                      email = "mustafacavus@eskisehir.edu.tr"),
               person(given = "Berna",
                      family = "YAZICI",
                      role = "aut"))
as necessary.

Found the following (possibly) invalid URLs:
  URL: do:10.2307/1267501
    From: DESCRIPTION
    Message: Invalid URI scheme
Maintainer: ‘Mustafa CAVUS <mustafacavus@eskisehir.edu.tr>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Mustafa",
                      family = "CAVUS",
                      role = c("aut", "cre"),
                      email = "mustafacavus@eskisehir.edu.tr"),
               person(given = "Berna",
                      family = "YAZICI",
                      role = "aut"))
as necessary.

Found the following (possibly) invalid URLs:
  URL: do:10.2307/1267501
    From: DESCRIPTION
    Message: Invalid URI scheme
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory